Home / 10,715.56-14,787.51-6,242.38

Finding the Fourth Proportional to 10,715.56, 14,787.51 and 6,242.38

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Solution

The fourth proportional to 10,715.56, 14,787.51 and 6,242.38 is: 8,614.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.56 : 14,787.51 = 6,242.38 : x
  2. Step 2: Convert to fraction form
    10,715.56/14,787.51 = 6,242.38/x
  3. Step 3: Cross multiply
    10,715.56x = 14,787.51 × 6,242.38
  4. Step 4: Simplify right side
    10,715.56x = 92,309,314.59
  5. Step 5: Solve for x
    x = 92,309,314.59/10,715.56
  6. Step 6: Final answer
    x = 8,614.51

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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.