Home / 10,092.28-15,140.15-3,428.07

Finding the Fourth Proportional to 10,092.28, 15,140.15 and 3,428.07

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Solution

The fourth proportional to 10,092.28, 15,140.15 and 3,428.07 is: 5,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,092.28 : 15,140.15 = 3,428.07 : x
  2. Step 2: Convert to fraction form
    10,092.28/15,140.15 = 3,428.07/x
  3. Step 3: Cross multiply
    10,092.28x = 15,140.15 × 3,428.07
  4. Step 4: Simplify right side
    10,092.28x = 51,901,518.11
  5. Step 5: Solve for x
    x = 51,901,518.11/10,092.28
  6. Step 6: Final answer
    x = 5,142.70

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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.