Home / 9,149.40-12,626.34-5,611.32

Finding the Fourth Proportional to 9,149.40, 12,626.34 and 5,611.32

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Solution

The fourth proportional to 9,149.40, 12,626.34 and 5,611.32 is: 7,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.40 : 12,626.34 = 5,611.32 : x
  2. Step 2: Convert to fraction form
    9,149.40/12,626.34 = 5,611.32/x
  3. Step 3: Cross multiply
    9,149.40x = 12,626.34 × 5,611.32
  4. Step 4: Simplify right side
    9,149.40x = 70,850,434.17
  5. Step 5: Solve for x
    x = 70,850,434.17/9,149.40
  6. Step 6: Final answer
    x = 7,743.72

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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.