Home / 9,138.60-13,722.30-5,250.60

Finding the Fourth Proportional to 9,138.60, 13,722.30 and 5,250.60

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Solution

The fourth proportional to 9,138.60, 13,722.30 and 5,250.60 is: 7,884.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.60 : 13,722.30 = 5,250.60 : x
  2. Step 2: Convert to fraction form
    9,138.60/13,722.30 = 5,250.60/x
  3. Step 3: Cross multiply
    9,138.60x = 13,722.30 × 5,250.60
  4. Step 4: Simplify right side
    9,138.60x = 72,050,308.38
  5. Step 5: Solve for x
    x = 72,050,308.38/9,138.60
  6. Step 6: Final answer
    x = 7,884.17

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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.