Home / 10,279.66-15,420.36-4,039.18

Finding the Fourth Proportional to 10,279.66, 15,420.36 and 4,039.18

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Solution

The fourth proportional to 10,279.66, 15,420.36 and 4,039.18 is: 6,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.66 : 15,420.36 = 4,039.18 : x
  2. Step 2: Convert to fraction form
    10,279.66/15,420.36 = 4,039.18/x
  3. Step 3: Cross multiply
    10,279.66x = 15,420.36 × 4,039.18
  4. Step 4: Simplify right side
    10,279.66x = 62,285,609.70
  5. Step 5: Solve for x
    x = 62,285,609.70/10,279.66
  6. Step 6: Final answer
    x = 6,059.11

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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.