Home / 25,646.10-38,469.15-8,117.70

Finding the Fourth Proportional to 25,646.10, 38,469.15 and 8,117.70

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Solution

The fourth proportional to 25,646.10, 38,469.15 and 8,117.70 is: 12,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.10 : 38,469.15 = 8,117.70 : x
  2. Step 2: Convert to fraction form
    25,646.10/38,469.15 = 8,117.70/x
  3. Step 3: Cross multiply
    25,646.10x = 38,469.15 × 8,117.70
  4. Step 4: Simplify right side
    25,646.10x = 312,281,018.96
  5. Step 5: Solve for x
    x = 312,281,018.96/25,646.10
  6. Step 6: Final answer
    x = 12,176.55

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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.