Home / 15,541.45-21,447.20-8,467.87

Finding the Fourth Proportional to 15,541.45, 21,447.20 and 8,467.87

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Solution

The fourth proportional to 15,541.45, 21,447.20 and 8,467.87 is: 11,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.45 : 21,447.20 = 8,467.87 : x
  2. Step 2: Convert to fraction form
    15,541.45/21,447.20 = 8,467.87/x
  3. Step 3: Cross multiply
    15,541.45x = 21,447.20 × 8,467.87
  4. Step 4: Simplify right side
    15,541.45x = 181,612,101.46
  5. Step 5: Solve for x
    x = 181,612,101.46/15,541.45
  6. Step 6: Final answer
    x = 11,685.66

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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.