Home / 10,270.50-15,403.38-2,875.70

Finding the Fourth Proportional to 10,270.50, 15,403.38 and 2,875.70

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Solution

The fourth proportional to 10,270.50, 15,403.38 and 2,875.70 is: 4,312.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.50 : 15,403.38 = 2,875.70 : x
  2. Step 2: Convert to fraction form
    10,270.50/15,403.38 = 2,875.70/x
  3. Step 3: Cross multiply
    10,270.50x = 15,403.38 × 2,875.70
  4. Step 4: Simplify right side
    10,270.50x = 44,295,422.85
  5. Step 5: Solve for x
    x = 44,295,422.85/10,270.50
  6. Step 6: Final answer
    x = 4,312.88

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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.