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Finding the Fourth Proportional to 13,493.52, 20,240.28 and 13,124.52

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Solution

The fourth proportional to 13,493.52, 20,240.28 and 13,124.52 is: 19,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,493.52 : 20,240.28 = 13,124.52 : x
  2. Step 2: Convert to fraction form
    13,493.52/20,240.28 = 13,124.52/x
  3. Step 3: Cross multiply
    13,493.52x = 20,240.28 × 13,124.52
  4. Step 4: Simplify right side
    13,493.52x = 265,643,959.67
  5. Step 5: Solve for x
    x = 265,643,959.67/13,493.52
  6. Step 6: Final answer
    x = 19,686.78

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1.5x scale

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.