Home / 11,204.86-15,446.13-7,171.24

Finding the Fourth Proportional to 11,204.86, 15,446.13 and 7,171.24

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Solution

The fourth proportional to 11,204.86, 15,446.13 and 7,171.24 is: 9,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,204.86 : 15,446.13 = 7,171.24 : x
  2. Step 2: Convert to fraction form
    11,204.86/15,446.13 = 7,171.24/x
  3. Step 3: Cross multiply
    11,204.86x = 15,446.13 × 7,171.24
  4. Step 4: Simplify right side
    11,204.86x = 110,767,905.30
  5. Step 5: Solve for x
    x = 110,767,905.30/11,204.86
  6. Step 6: Final answer
    x = 9,885.70

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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.