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Finding the Fourth Proportional to 18,888.52, 28,332.84 and 5,037.52

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Solution

The fourth proportional to 18,888.52, 28,332.84 and 5,037.52 is: 7,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.52 : 28,332.84 = 5,037.52 : x
  2. Step 2: Convert to fraction form
    18,888.52/28,332.84 = 5,037.52/x
  3. Step 3: Cross multiply
    18,888.52x = 28,332.84 × 5,037.52
  4. Step 4: Simplify right side
    18,888.52x = 142,727,248.16
  5. Step 5: Solve for x
    x = 142,727,248.16/18,888.52
  6. Step 6: Final answer
    x = 7,556.30

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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.