Home / 18,838.12-28,251.96-5,690.92

Finding the Fourth Proportional to 18,838.12, 28,251.96 and 5,690.92

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Solution

The fourth proportional to 18,838.12, 28,251.96 and 5,690.92 is: 8,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.12 : 28,251.96 = 5,690.92 : x
  2. Step 2: Convert to fraction form
    18,838.12/28,251.96 = 5,690.92/x
  3. Step 3: Cross multiply
    18,838.12x = 28,251.96 × 5,690.92
  4. Step 4: Simplify right side
    18,838.12x = 160,779,644.20
  5. Step 5: Solve for x
    x = 160,779,644.20/18,838.12
  6. Step 6: Final answer
    x = 8,534.80

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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.