Home / 17,915.76-26,863.92-5,432.04

Finding the Fourth Proportional to 17,915.76, 26,863.92 and 5,432.04

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Solution

The fourth proportional to 17,915.76, 26,863.92 and 5,432.04 is: 8,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,915.76 : 26,863.92 = 5,432.04 : x
  2. Step 2: Convert to fraction form
    17,915.76/26,863.92 = 5,432.04/x
  3. Step 3: Cross multiply
    17,915.76x = 26,863.92 × 5,432.04
  4. Step 4: Simplify right side
    17,915.76x = 145,925,888.00
  5. Step 5: Solve for x
    x = 145,925,888.00/17,915.76
  6. Step 6: Final answer
    x = 8,145.11

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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.