Home / 8,649.39-11,927.79-5,245.65

Finding the Fourth Proportional to 8,649.39, 11,927.79 and 5,245.65

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Solution

The fourth proportional to 8,649.39, 11,927.79 and 5,245.65 is: 7,233.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.39 : 11,927.79 = 5,245.65 : x
  2. Step 2: Convert to fraction form
    8,649.39/11,927.79 = 5,245.65/x
  3. Step 3: Cross multiply
    8,649.39x = 11,927.79 × 5,245.65
  4. Step 4: Simplify right side
    8,649.39x = 62,569,011.61
  5. Step 5: Solve for x
    x = 62,569,011.61/8,649.39
  6. Step 6: Final answer
    x = 7,233.92

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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.