Home / 13,551.86-20,330.28-6,156.87

Finding the Fourth Proportional to 13,551.86, 20,330.28 and 6,156.87

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Solution

The fourth proportional to 13,551.86, 20,330.28 and 6,156.87 is: 9,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.86 : 20,330.28 = 6,156.87 : x
  2. Step 2: Convert to fraction form
    13,551.86/20,330.28 = 6,156.87/x
  3. Step 3: Cross multiply
    13,551.86x = 20,330.28 × 6,156.87
  4. Step 4: Simplify right side
    13,551.86x = 125,170,891.02
  5. Step 5: Solve for x
    x = 125,170,891.02/13,551.86
  6. Step 6: Final answer
    x = 9,236.44

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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.