Home / 15,540.65-21,445.52-8,466.92

Finding the Fourth Proportional to 15,540.65, 21,445.52 and 8,466.92

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Solution

The fourth proportional to 15,540.65, 21,445.52 and 8,466.92 is: 11,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.65 : 21,445.52 = 8,466.92 : x
  2. Step 2: Convert to fraction form
    15,540.65/21,445.52 = 8,466.92/x
  3. Step 3: Cross multiply
    15,540.65x = 21,445.52 × 8,466.92
  4. Step 4: Simplify right side
    15,540.65x = 181,577,502.20
  5. Step 5: Solve for x
    x = 181,577,502.20/15,540.65
  6. Step 6: Final answer
    x = 11,684.04

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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.