Home / 13,553.52-20,319.36-5,756.88

Finding the Fourth Proportional to 13,553.52, 20,319.36 and 5,756.88

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Solution

The fourth proportional to 13,553.52, 20,319.36 and 5,756.88 is: 8,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.52 : 20,319.36 = 5,756.88 : x
  2. Step 2: Convert to fraction form
    13,553.52/20,319.36 = 5,756.88/x
  3. Step 3: Cross multiply
    13,553.52x = 20,319.36 × 5,756.88
  4. Step 4: Simplify right side
    13,553.52x = 116,976,117.20
  5. Step 5: Solve for x
    x = 116,976,117.20/13,553.52
  6. Step 6: Final answer
    x = 8,630.68

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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.