Home / 14,930.46-22,400.55-7,139.88

Finding the Fourth Proportional to 14,930.46, 22,400.55 and 7,139.88

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Solution

The fourth proportional to 14,930.46, 22,400.55 and 7,139.88 is: 10,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,930.46 : 22,400.55 = 7,139.88 : x
  2. Step 2: Convert to fraction form
    14,930.46/22,400.55 = 7,139.88/x
  3. Step 3: Cross multiply
    14,930.46x = 22,400.55 × 7,139.88
  4. Step 4: Simplify right side
    14,930.46x = 159,937,091.23
  5. Step 5: Solve for x
    x = 159,937,091.23/14,930.46
  6. Step 6: Final answer
    x = 10,712.14

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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.