Home / 10,190.91-15,275.88-4,271.28

Finding the Fourth Proportional to 10,190.91, 15,275.88 and 4,271.28

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Solution

The fourth proportional to 10,190.91, 15,275.88 and 4,271.28 is: 6,402.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.91 : 15,275.88 = 4,271.28 : x
  2. Step 2: Convert to fraction form
    10,190.91/15,275.88 = 4,271.28/x
  3. Step 3: Cross multiply
    10,190.91x = 15,275.88 × 4,271.28
  4. Step 4: Simplify right side
    10,190.91x = 65,247,560.73
  5. Step 5: Solve for x
    x = 65,247,560.73/10,190.91
  6. Step 6: Final answer
    x = 6,402.53

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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.