Home / 8,877.40-13,315.96-5,134.80

Finding the Fourth Proportional to 8,877.40, 13,315.96 and 5,134.80

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Solution

The fourth proportional to 8,877.40, 13,315.96 and 5,134.80 is: 7,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.40 : 13,315.96 = 5,134.80 : x
  2. Step 2: Convert to fraction form
    8,877.40/13,315.96 = 5,134.80/x
  3. Step 3: Cross multiply
    8,877.40x = 13,315.96 × 5,134.80
  4. Step 4: Simplify right side
    8,877.40x = 68,374,793.05
  5. Step 5: Solve for x
    x = 68,374,793.05/8,877.40
  6. Step 6: Final answer
    x = 7,702.12

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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.