Home / 15,540.56-21,445.96-8,466.98

Finding the Fourth Proportional to 15,540.56, 21,445.96 and 8,466.98

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Solution

The fourth proportional to 15,540.56, 21,445.96 and 8,466.98 is: 11,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.56 : 21,445.96 = 8,466.98 : x
  2. Step 2: Convert to fraction form
    15,540.56/21,445.96 = 8,466.98/x
  3. Step 3: Cross multiply
    15,540.56x = 21,445.96 × 8,466.98
  4. Step 4: Simplify right side
    15,540.56x = 181,582,514.40
  5. Step 5: Solve for x
    x = 181,582,514.40/15,540.56
  6. Step 6: Final answer
    x = 11,684.43

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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.