Home / 15,134.72-20,888.79-9,472.10

Finding the Fourth Proportional to 15,134.72, 20,888.79 and 9,472.10

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Solution

The fourth proportional to 15,134.72, 20,888.79 and 9,472.10 is: 13,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.72 : 20,888.79 = 9,472.10 : x
  2. Step 2: Convert to fraction form
    15,134.72/20,888.79 = 9,472.10/x
  3. Step 3: Cross multiply
    15,134.72x = 20,888.79 × 9,472.10
  4. Step 4: Simplify right side
    15,134.72x = 197,860,707.76
  5. Step 5: Solve for x
    x = 197,860,707.76/15,134.72
  6. Step 6: Final answer
    x = 13,073.30

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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.