Home / 14,921.34-20,591.51-8,207.66

Finding the Fourth Proportional to 14,921.34, 20,591.51 and 8,207.66

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Solution

The fourth proportional to 14,921.34, 20,591.51 and 8,207.66 is: 11,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.34 : 20,591.51 = 8,207.66 : x
  2. Step 2: Convert to fraction form
    14,921.34/20,591.51 = 8,207.66/x
  3. Step 3: Cross multiply
    14,921.34x = 20,591.51 × 8,207.66
  4. Step 4: Simplify right side
    14,921.34x = 169,007,968.97
  5. Step 5: Solve for x
    x = 169,007,968.97/14,921.34
  6. Step 6: Final answer
    x = 11,326.59

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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.