Home / 14,929.96-22,399.80-7,139.38

Finding the Fourth Proportional to 14,929.96, 22,399.80 and 7,139.38

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Solution

The fourth proportional to 14,929.96, 22,399.80 and 7,139.38 is: 10,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929.96 : 22,399.80 = 7,139.38 : x
  2. Step 2: Convert to fraction form
    14,929.96/22,399.80 = 7,139.38/x
  3. Step 3: Cross multiply
    14,929.96x = 22,399.80 × 7,139.38
  4. Step 4: Simplify right side
    14,929.96x = 159,920,536.43
  5. Step 5: Solve for x
    x = 159,920,536.43/14,929.96
  6. Step 6: Final answer
    x = 10,711.39

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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.