Home / 11,782.39-16,259.51-6,477.09

Finding the Fourth Proportional to 11,782.39, 16,259.51 and 6,477.09

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Solution

The fourth proportional to 11,782.39, 16,259.51 and 6,477.09 is: 8,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.39 : 16,259.51 = 6,477.09 : x
  2. Step 2: Convert to fraction form
    11,782.39/16,259.51 = 6,477.09/x
  3. Step 3: Cross multiply
    11,782.39x = 16,259.51 × 6,477.09
  4. Step 4: Simplify right side
    11,782.39x = 105,314,325.82
  5. Step 5: Solve for x
    x = 105,314,325.82/11,782.39
  6. Step 6: Final answer
    x = 8,938.28

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,783.39, 16,260.89 and 6,478.09
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.