Home / 13,332.53-19,981.49-5,425.83

Finding the Fourth Proportional to 13,332.53, 19,981.49 and 5,425.83

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Solution

The fourth proportional to 13,332.53, 19,981.49 and 5,425.83 is: 8,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.53 : 19,981.49 = 5,425.83 : x
  2. Step 2: Convert to fraction form
    13,332.53/19,981.49 = 5,425.83/x
  3. Step 3: Cross multiply
    13,332.53x = 19,981.49 × 5,425.83
  4. Step 4: Simplify right side
    13,332.53x = 108,416,140.76
  5. Step 5: Solve for x
    x = 108,416,140.76/13,332.53
  6. Step 6: Final answer
    x = 8,131.70

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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.