Home / 15,178.64-20,952.29-11,412.74

Finding the Fourth Proportional to 15,178.64, 20,952.29 and 11,412.74

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Solution

The fourth proportional to 15,178.64, 20,952.29 and 11,412.74 is: 15,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.64 : 20,952.29 = 11,412.74 : x
  2. Step 2: Convert to fraction form
    15,178.64/20,952.29 = 11,412.74/x
  3. Step 3: Cross multiply
    15,178.64x = 20,952.29 × 11,412.74
  4. Step 4: Simplify right side
    15,178.64x = 239,123,107.16
  5. Step 5: Solve for x
    x = 239,123,107.16/15,178.64
  6. Step 6: Final answer
    x = 15,753.92

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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.