Home / 8,915.31-13,366.80-3,915.27

Finding the Fourth Proportional to 8,915.31, 13,366.80 and 3,915.27

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Solution

The fourth proportional to 8,915.31, 13,366.80 and 3,915.27 is: 5,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.31 : 13,366.80 = 3,915.27 : x
  2. Step 2: Convert to fraction form
    8,915.31/13,366.80 = 3,915.27/x
  3. Step 3: Cross multiply
    8,915.31x = 13,366.80 × 3,915.27
  4. Step 4: Simplify right side
    8,915.31x = 52,334,631.04
  5. Step 5: Solve for x
    x = 52,334,631.04/8,915.31
  6. Step 6: Final answer
    x = 5,870.20

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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.