Home / 13,693.86-20,532.20-6,288.81

Finding the Fourth Proportional to 13,693.86, 20,532.20 and 6,288.81

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Solution

The fourth proportional to 13,693.86, 20,532.20 and 6,288.81 is: 9,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.86 : 20,532.20 = 6,288.81 : x
  2. Step 2: Convert to fraction form
    13,693.86/20,532.20 = 6,288.81/x
  3. Step 3: Cross multiply
    13,693.86x = 20,532.20 × 6,288.81
  4. Step 4: Simplify right side
    13,693.86x = 129,123,073.24
  5. Step 5: Solve for x
    x = 129,123,073.24/13,693.86
  6. Step 6: Final answer
    x = 9,429.27

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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.