Home / 8,344.90-11,515.17-4,987.05

Finding the Fourth Proportional to 8,344.90, 11,515.17 and 4,987.05

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Solution

The fourth proportional to 8,344.90, 11,515.17 and 4,987.05 is: 6,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.90 : 11,515.17 = 4,987.05 : x
  2. Step 2: Convert to fraction form
    8,344.90/11,515.17 = 4,987.05/x
  3. Step 3: Cross multiply
    8,344.90x = 11,515.17 × 4,987.05
  4. Step 4: Simplify right side
    8,344.90x = 57,426,728.55
  5. Step 5: Solve for x
    x = 57,426,728.55/8,344.90
  6. Step 6: Final answer
    x = 6,881.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.