Home / 13,746.57-20,619.85-4,981.47

Finding the Fourth Proportional to 13,746.57, 20,619.85 and 4,981.47

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Solution

The fourth proportional to 13,746.57, 20,619.85 and 4,981.47 is: 7,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.57 : 20,619.85 = 4,981.47 : x
  2. Step 2: Convert to fraction form
    13,746.57/20,619.85 = 4,981.47/x
  3. Step 3: Cross multiply
    13,746.57x = 20,619.85 × 4,981.47
  4. Step 4: Simplify right side
    13,746.57x = 102,717,151.73
  5. Step 5: Solve for x
    x = 102,717,151.73/13,746.57
  6. Step 6: Final answer
    x = 7,472.20

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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.