Home / 10,299.40-15,449.05-4,375.38

Finding the Fourth Proportional to 10,299.40, 15,449.05 and 4,375.38

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Solution

The fourth proportional to 10,299.40, 15,449.05 and 4,375.38 is: 6,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,299.40 : 15,449.05 = 4,375.38 : x
  2. Step 2: Convert to fraction form
    10,299.40/15,449.05 = 4,375.38/x
  3. Step 3: Cross multiply
    10,299.40x = 15,449.05 × 4,375.38
  4. Step 4: Simplify right side
    10,299.40x = 67,595,419.12
  5. Step 5: Solve for x
    x = 67,595,419.12/10,299.40
  6. Step 6: Final answer
    x = 6,563.05

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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.