Home / 10,502.72-15,753.54-3,928.42

Finding the Fourth Proportional to 10,502.72, 15,753.54 and 3,928.42

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Solution

The fourth proportional to 10,502.72, 15,753.54 and 3,928.42 is: 5,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502.72 : 15,753.54 = 3,928.42 : x
  2. Step 2: Convert to fraction form
    10,502.72/15,753.54 = 3,928.42/x
  3. Step 3: Cross multiply
    10,502.72x = 15,753.54 × 3,928.42
  4. Step 4: Simplify right side
    10,502.72x = 61,886,482.22
  5. Step 5: Solve for x
    x = 61,886,482.22/10,502.72
  6. Step 6: Final answer
    x = 5,892.43

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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.