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Finding the Fourth Proportional to 8,915.89, 13,373.85 and 5,018.17

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Solution

The fourth proportional to 8,915.89, 13,373.85 and 5,018.17 is: 7,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.89 : 13,373.85 = 5,018.17 : x
  2. Step 2: Convert to fraction form
    8,915.89/13,373.85 = 5,018.17/x
  3. Step 3: Cross multiply
    8,915.89x = 13,373.85 × 5,018.17
  4. Step 4: Simplify right side
    8,915.89x = 67,112,252.85
  5. Step 5: Solve for x
    x = 67,112,252.85/8,915.89
  6. Step 6: Final answer
    x = 7,527.26

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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.