Home / 13,432.20-20,145.24-5,109.24

Finding the Fourth Proportional to 13,432.20, 20,145.24 and 5,109.24

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Solution

The fourth proportional to 13,432.20, 20,145.24 and 5,109.24 is: 7,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.20 : 20,145.24 = 5,109.24 : x
  2. Step 2: Convert to fraction form
    13,432.20/20,145.24 = 5,109.24/x
  3. Step 3: Cross multiply
    13,432.20x = 20,145.24 × 5,109.24
  4. Step 4: Simplify right side
    13,432.20x = 102,926,866.02
  5. Step 5: Solve for x
    x = 102,926,866.02/13,432.20
  6. Step 6: Final answer
    x = 7,662.70

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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.