Home / 13,621.80-20,432.70-5,825.14

Finding the Fourth Proportional to 13,621.80, 20,432.70 and 5,825.14

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Solution

The fourth proportional to 13,621.80, 20,432.70 and 5,825.14 is: 8,737.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.80 : 20,432.70 = 5,825.14 : x
  2. Step 2: Convert to fraction form
    13,621.80/20,432.70 = 5,825.14/x
  3. Step 3: Cross multiply
    13,621.80x = 20,432.70 × 5,825.14
  4. Step 4: Simplify right side
    13,621.80x = 119,023,338.08
  5. Step 5: Solve for x
    x = 119,023,338.08/13,621.80
  6. Step 6: Final answer
    x = 8,737.71

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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.