Home / 11,477.70-17,216.55-8,124.30

Finding the Fourth Proportional to 11,477.70, 17,216.55 and 8,124.30

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Solution

The fourth proportional to 11,477.70, 17,216.55 and 8,124.30 is: 12,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.70 : 17,216.55 = 8,124.30 : x
  2. Step 2: Convert to fraction form
    11,477.70/17,216.55 = 8,124.30/x
  3. Step 3: Cross multiply
    11,477.70x = 17,216.55 × 8,124.30
  4. Step 4: Simplify right side
    11,477.70x = 139,872,417.17
  5. Step 5: Solve for x
    x = 139,872,417.17/11,477.70
  6. Step 6: Final answer
    x = 12,186.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.