Home / 8,771.15-13,157.18-4,387.13

Finding the Fourth Proportional to 8,771.15, 13,157.18 and 4,387.13

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Solution

The fourth proportional to 8,771.15, 13,157.18 and 4,387.13 is: 6,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.15 : 13,157.18 = 4,387.13 : x
  2. Step 2: Convert to fraction form
    8,771.15/13,157.18 = 4,387.13/x
  3. Step 3: Cross multiply
    8,771.15x = 13,157.18 × 4,387.13
  4. Step 4: Simplify right side
    8,771.15x = 57,722,261.84
  5. Step 5: Solve for x
    x = 57,722,261.84/8,771.15
  6. Step 6: Final answer
    x = 6,580.92

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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.