Home / 9,146.40-12,622.20-5,608.32

Finding the Fourth Proportional to 9,146.40, 12,622.20 and 5,608.32

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Solution

The fourth proportional to 9,146.40, 12,622.20 and 5,608.32 is: 7,739.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.40 : 12,622.20 = 5,608.32 : x
  2. Step 2: Convert to fraction form
    9,146.40/12,622.20 = 5,608.32/x
  3. Step 3: Cross multiply
    9,146.40x = 12,622.20 × 5,608.32
  4. Step 4: Simplify right side
    9,146.40x = 70,789,336.70
  5. Step 5: Solve for x
    x = 70,789,336.70/9,146.40
  6. Step 6: Final answer
    x = 7,739.58

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Double scale
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Similar ratio
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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.