Home / 14,921.70-20,592.45-8,207.85

Finding the Fourth Proportional to 14,921.70, 20,592.45 and 8,207.85

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Solution

The fourth proportional to 14,921.70, 20,592.45 and 8,207.85 is: 11,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.70 : 20,592.45 = 8,207.85 : x
  2. Step 2: Convert to fraction form
    14,921.70/20,592.45 = 8,207.85/x
  3. Step 3: Cross multiply
    14,921.70x = 20,592.45 × 8,207.85
  4. Step 4: Simplify right side
    14,921.70x = 169,019,699.69
  5. Step 5: Solve for x
    x = 169,019,699.69/14,921.70
  6. Step 6: Final answer
    x = 11,327.11

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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.