Home / 9,139.40-13,691.46-5,444.60

Finding the Fourth Proportional to 9,139.40, 13,691.46 and 5,444.60

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Solution

The fourth proportional to 9,139.40, 13,691.46 and 5,444.60 is: 8,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.40 : 13,691.46 = 5,444.60 : x
  2. Step 2: Convert to fraction form
    9,139.40/13,691.46 = 5,444.60/x
  3. Step 3: Cross multiply
    9,139.40x = 13,691.46 × 5,444.60
  4. Step 4: Simplify right side
    9,139.40x = 74,544,523.12
  5. Step 5: Solve for x
    x = 74,544,523.12/9,139.40
  6. Step 6: Final answer
    x = 8,156.39

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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.