Home / 14,921.34-20,591.55-8,207.40

Finding the Fourth Proportional to 14,921.34, 20,591.55 and 8,207.40

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Solution

The fourth proportional to 14,921.34, 20,591.55 and 8,207.40 is: 11,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.34 : 20,591.55 = 8,207.40 : x
  2. Step 2: Convert to fraction form
    14,921.34/20,591.55 = 8,207.40/x
  3. Step 3: Cross multiply
    14,921.34x = 20,591.55 × 8,207.40
  4. Step 4: Simplify right side
    14,921.34x = 169,003,087.47
  5. Step 5: Solve for x
    x = 169,003,087.47/14,921.34
  6. Step 6: Final answer
    x = 11,326.27

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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.