Home / 11,665.20-16,113.34-8,646.44

Finding the Fourth Proportional to 11,665.20, 16,113.34 and 8,646.44

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Solution

The fourth proportional to 11,665.20, 16,113.34 and 8,646.44 is: 11,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.20 : 16,113.34 = 8,646.44 : x
  2. Step 2: Convert to fraction form
    11,665.20/16,113.34 = 8,646.44/x
  3. Step 3: Cross multiply
    11,665.20x = 16,113.34 × 8,646.44
  4. Step 4: Simplify right side
    11,665.20x = 139,323,027.51
  5. Step 5: Solve for x
    x = 139,323,027.51/11,665.20
  6. Step 6: Final answer
    x = 11,943.48

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,666.20, 16,114.72 and 8,647.44
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.