Home / 10,419.38-14,378.60-5,943.21

Finding the Fourth Proportional to 10,419.38, 14,378.60 and 5,943.21

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Solution

The fourth proportional to 10,419.38, 14,378.60 and 5,943.21 is: 8,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.38 : 14,378.60 = 5,943.21 : x
  2. Step 2: Convert to fraction form
    10,419.38/14,378.60 = 5,943.21/x
  3. Step 3: Cross multiply
    10,419.38x = 14,378.60 × 5,943.21
  4. Step 4: Simplify right side
    10,419.38x = 85,455,039.31
  5. Step 5: Solve for x
    x = 85,455,039.31/10,419.38
  6. Step 6: Final answer
    x = 8,201.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.