Home / 18,835.52-28,234.90-8,972.16

Finding the Fourth Proportional to 18,835.52, 28,234.90 and 8,972.16

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Solution

The fourth proportional to 18,835.52, 28,234.90 and 8,972.16 is: 13,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.52 : 28,234.90 = 8,972.16 : x
  2. Step 2: Convert to fraction form
    18,835.52/28,234.90 = 8,972.16/x
  3. Step 3: Cross multiply
    18,835.52x = 28,234.90 × 8,972.16
  4. Step 4: Simplify right side
    18,835.52x = 253,328,040.38
  5. Step 5: Solve for x
    x = 253,328,040.38/18,835.52
  6. Step 6: Final answer
    x = 13,449.48

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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.