Home / 15,362.38-21,200.85-8,650.18

Finding the Fourth Proportional to 15,362.38, 21,200.85 and 8,650.18

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Solution

The fourth proportional to 15,362.38, 21,200.85 and 8,650.18 is: 11,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.38 : 21,200.85 = 8,650.18 : x
  2. Step 2: Convert to fraction form
    15,362.38/21,200.85 = 8,650.18/x
  3. Step 3: Cross multiply
    15,362.38x = 21,200.85 × 8,650.18
  4. Step 4: Simplify right side
    15,362.38x = 183,391,168.65
  5. Step 5: Solve for x
    x = 183,391,168.65/15,362.38
  6. Step 6: Final answer
    x = 11,937.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.