Home / 13,789.28-20,688.60-6,003.20

Finding the Fourth Proportional to 13,789.28, 20,688.60 and 6,003.20

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Solution

The fourth proportional to 13,789.28, 20,688.60 and 6,003.20 is: 9,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.28 : 20,688.60 = 6,003.20 : x
  2. Step 2: Convert to fraction form
    13,789.28/20,688.60 = 6,003.20/x
  3. Step 3: Cross multiply
    13,789.28x = 20,688.60 × 6,003.20
  4. Step 4: Simplify right side
    13,789.28x = 124,197,803.52
  5. Step 5: Solve for x
    x = 124,197,803.52/13,789.28
  6. Step 6: Final answer
    x = 9,006.84

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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.