Home / 10,956.24-15,087.76-9,520

Finding the Fourth Proportional to 10,956.24, 15,087.76 and 9,520

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Solution

The fourth proportional to 10,956.24, 15,087.76 and 9,520 is: 13,109.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.24 : 15,087.76 = 9,520 : x
  2. Step 2: Convert to fraction form
    10,956.24/15,087.76 = 9,520/x
  3. Step 3: Cross multiply
    10,956.24x = 15,087.76 × 9,520
  4. Step 4: Simplify right side
    10,956.24x = 143,635,475.20
  5. Step 5: Solve for x
    x = 143,635,475.20/10,956.24
  6. Step 6: Final answer
    x = 13,109.92

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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.