Home / 18,859.38-28,292.10-5,710.65

Finding the Fourth Proportional to 18,859.38, 28,292.10 and 5,710.65

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Solution

The fourth proportional to 18,859.38, 28,292.10 and 5,710.65 is: 8,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.38 : 28,292.10 = 5,710.65 : x
  2. Step 2: Convert to fraction form
    18,859.38/28,292.10 = 5,710.65/x
  3. Step 3: Cross multiply
    18,859.38x = 28,292.10 × 5,710.65
  4. Step 4: Simplify right side
    18,859.38x = 161,566,280.87
  5. Step 5: Solve for x
    x = 161,566,280.87/18,859.38
  6. Step 6: Final answer
    x = 8,566.89

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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.