Home / 15,584.70-23,328.45-12,279.90

Finding the Fourth Proportional to 15,584.70, 23,328.45 and 12,279.90

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Solution

The fourth proportional to 15,584.70, 23,328.45 and 12,279.90 is: 18,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,584.70 : 23,328.45 = 12,279.90 : x
  2. Step 2: Convert to fraction form
    15,584.70/23,328.45 = 12,279.90/x
  3. Step 3: Cross multiply
    15,584.70x = 23,328.45 × 12,279.90
  4. Step 4: Simplify right side
    15,584.70x = 286,471,033.16
  5. Step 5: Solve for x
    x = 286,471,033.16/15,584.70
  6. Step 6: Final answer
    x = 18,381.56

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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.