Home / 12,234.32-18,338.10-6,391.52

Finding the Fourth Proportional to 12,234.32, 18,338.10 and 6,391.52

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Solution

The fourth proportional to 12,234.32, 18,338.10 and 6,391.52 is: 9,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.32 : 18,338.10 = 6,391.52 : x
  2. Step 2: Convert to fraction form
    12,234.32/18,338.10 = 6,391.52/x
  3. Step 3: Cross multiply
    12,234.32x = 18,338.10 × 6,391.52
  4. Step 4: Simplify right side
    12,234.32x = 117,208,332.91
  5. Step 5: Solve for x
    x = 117,208,332.91/12,234.32
  6. Step 6: Final answer
    x = 9,580.29

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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.