Home / 7,428.20-11,142.36-6,039.92

Finding the Fourth Proportional to 7,428.20, 11,142.36 and 6,039.92

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Solution

The fourth proportional to 7,428.20, 11,142.36 and 6,039.92 is: 9,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.20 : 11,142.36 = 6,039.92 : x
  2. Step 2: Convert to fraction form
    7,428.20/11,142.36 = 6,039.92/x
  3. Step 3: Cross multiply
    7,428.20x = 11,142.36 × 6,039.92
  4. Step 4: Simplify right side
    7,428.20x = 67,298,963.01
  5. Step 5: Solve for x
    x = 67,298,963.01/7,428.20
  6. Step 6: Final answer
    x = 9,059.93

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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.