Home / 13,752.64-20,628.96-4,981.42

Finding the Fourth Proportional to 13,752.64, 20,628.96 and 4,981.42

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Solution

The fourth proportional to 13,752.64, 20,628.96 and 4,981.42 is: 7,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.64 : 20,628.96 = 4,981.42 : x
  2. Step 2: Convert to fraction form
    13,752.64/20,628.96 = 4,981.42/x
  3. Step 3: Cross multiply
    13,752.64x = 20,628.96 × 4,981.42
  4. Step 4: Simplify right side
    13,752.64x = 102,761,513.92
  5. Step 5: Solve for x
    x = 102,761,513.92/13,752.64
  6. Step 6: Final answer
    x = 7,472.13

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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.