Home / 15,909.18-23,863.83-5,379.28

Finding the Fourth Proportional to 15,909.18, 23,863.83 and 5,379.28

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Solution

The fourth proportional to 15,909.18, 23,863.83 and 5,379.28 is: 8,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.18 : 23,863.83 = 5,379.28 : x
  2. Step 2: Convert to fraction form
    15,909.18/23,863.83 = 5,379.28/x
  3. Step 3: Cross multiply
    15,909.18x = 23,863.83 × 5,379.28
  4. Step 4: Simplify right side
    15,909.18x = 128,370,223.44
  5. Step 5: Solve for x
    x = 128,370,223.44/15,909.18
  6. Step 6: Final answer
    x = 8,068.94

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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.