Home / 10,507.42-15,761.13-2,715.63

Finding the Fourth Proportional to 10,507.42, 15,761.13 and 2,715.63

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Solution

The fourth proportional to 10,507.42, 15,761.13 and 2,715.63 is: 4,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.42 : 15,761.13 = 2,715.63 : x
  2. Step 2: Convert to fraction form
    10,507.42/15,761.13 = 2,715.63/x
  3. Step 3: Cross multiply
    10,507.42x = 15,761.13 × 2,715.63
  4. Step 4: Simplify right side
    10,507.42x = 42,801,397.46
  5. Step 5: Solve for x
    x = 42,801,397.46/10,507.42
  6. Step 6: Final answer
    x = 4,073.45

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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.