Home / 13,688.20-20,524.44-5,358.47

Finding the Fourth Proportional to 13,688.20, 20,524.44 and 5,358.47

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Solution

The fourth proportional to 13,688.20, 20,524.44 and 5,358.47 is: 8,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.20 : 20,524.44 = 5,358.47 : x
  2. Step 2: Convert to fraction form
    13,688.20/20,524.44 = 5,358.47/x
  3. Step 3: Cross multiply
    13,688.20x = 20,524.44 × 5,358.47
  4. Step 4: Simplify right side
    13,688.20x = 109,979,596.01
  5. Step 5: Solve for x
    x = 109,979,596.01/13,688.20
  6. Step 6: Final answer
    x = 8,034.63

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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.