Home / 15,626.16-21,568.62-8,915.44

Finding the Fourth Proportional to 15,626.16, 21,568.62 and 8,915.44

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Solution

The fourth proportional to 15,626.16, 21,568.62 and 8,915.44 is: 12,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.16 : 21,568.62 = 8,915.44 : x
  2. Step 2: Convert to fraction form
    15,626.16/21,568.62 = 8,915.44/x
  3. Step 3: Cross multiply
    15,626.16x = 21,568.62 × 8,915.44
  4. Step 4: Simplify right side
    15,626.16x = 192,293,737.49
  5. Step 5: Solve for x
    x = 192,293,737.49/15,626.16
  6. Step 6: Final answer
    x = 12,305.89

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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.