Home / 9,220.38-12,722.40-5,634.60

Finding the Fourth Proportional to 9,220.38, 12,722.40 and 5,634.60

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Solution

The fourth proportional to 9,220.38, 12,722.40 and 5,634.60 is: 7,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,220.38 : 12,722.40 = 5,634.60 : x
  2. Step 2: Convert to fraction form
    9,220.38/12,722.40 = 5,634.60/x
  3. Step 3: Cross multiply
    9,220.38x = 12,722.40 × 5,634.60
  4. Step 4: Simplify right side
    9,220.38x = 71,685,635.04
  5. Step 5: Solve for x
    x = 71,685,635.04/9,220.38
  6. Step 6: Final answer
    x = 7,774.69

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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.