Home / 10,318.74-15,478.96-3,299.74

Finding the Fourth Proportional to 10,318.74, 15,478.96 and 3,299.74

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Solution

The fourth proportional to 10,318.74, 15,478.96 and 3,299.74 is: 4,949.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.74 : 15,478.96 = 3,299.74 : x
  2. Step 2: Convert to fraction form
    10,318.74/15,478.96 = 3,299.74/x
  3. Step 3: Cross multiply
    10,318.74x = 15,478.96 × 3,299.74
  4. Step 4: Simplify right side
    10,318.74x = 51,076,543.47
  5. Step 5: Solve for x
    x = 51,076,543.47/10,318.74
  6. Step 6: Final answer
    x = 4,949.88

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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.