Home / 15,915.08-21,963.48-8,842.16

Finding the Fourth Proportional to 15,915.08, 21,963.48 and 8,842.16

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Solution

The fourth proportional to 15,915.08, 21,963.48 and 8,842.16 is: 12,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.08 : 21,963.48 = 8,842.16 : x
  2. Step 2: Convert to fraction form
    15,915.08/21,963.48 = 8,842.16/x
  3. Step 3: Cross multiply
    15,915.08x = 21,963.48 × 8,842.16
  4. Step 4: Simplify right side
    15,915.08x = 194,204,604.32
  5. Step 5: Solve for x
    x = 194,204,604.32/15,915.08
  6. Step 6: Final answer
    x = 12,202.55

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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.