Home / 13,455.92-20,186.52-4,691.12

Finding the Fourth Proportional to 13,455.92, 20,186.52 and 4,691.12

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Solution

The fourth proportional to 13,455.92, 20,186.52 and 4,691.12 is: 7,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.92 : 20,186.52 = 4,691.12 : x
  2. Step 2: Convert to fraction form
    13,455.92/20,186.52 = 4,691.12/x
  3. Step 3: Cross multiply
    13,455.92x = 20,186.52 × 4,691.12
  4. Step 4: Simplify right side
    13,455.92x = 94,697,387.70
  5. Step 5: Solve for x
    x = 94,697,387.70/13,455.92
  6. Step 6: Final answer
    x = 7,037.60

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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.