Home / 14,248.85-21,382.45-7,679.61

Finding the Fourth Proportional to 14,248.85, 21,382.45 and 7,679.61

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Solution

The fourth proportional to 14,248.85, 21,382.45 and 7,679.61 is: 11,524.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,248.85 : 21,382.45 = 7,679.61 : x
  2. Step 2: Convert to fraction form
    14,248.85/21,382.45 = 7,679.61/x
  3. Step 3: Cross multiply
    14,248.85x = 21,382.45 × 7,679.61
  4. Step 4: Simplify right side
    14,248.85x = 164,208,857.65
  5. Step 5: Solve for x
    x = 164,208,857.65/14,248.85
  6. Step 6: Final answer
    x = 11,524.36

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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.