Home / 13,624.45-20,428.47-8,884.14

Finding the Fourth Proportional to 13,624.45, 20,428.47 and 8,884.14

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Solution

The fourth proportional to 13,624.45, 20,428.47 and 8,884.14 is: 13,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.45 : 20,428.47 = 8,884.14 : x
  2. Step 2: Convert to fraction form
    13,624.45/20,428.47 = 8,884.14/x
  3. Step 3: Cross multiply
    13,624.45x = 20,428.47 × 8,884.14
  4. Step 4: Simplify right side
    13,624.45x = 181,489,387.47
  5. Step 5: Solve for x
    x = 181,489,387.47/13,624.45
  6. Step 6: Final answer
    x = 13,320.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.