Home / 9,147.33-12,622.65-5,318.60

Finding the Fourth Proportional to 9,147.33, 12,622.65 and 5,318.60

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Solution

The fourth proportional to 9,147.33, 12,622.65 and 5,318.60 is: 7,339.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.33 : 12,622.65 = 5,318.60 : x
  2. Step 2: Convert to fraction form
    9,147.33/12,622.65 = 5,318.60/x
  3. Step 3: Cross multiply
    9,147.33x = 12,622.65 × 5,318.60
  4. Step 4: Simplify right side
    9,147.33x = 67,134,763.18
  5. Step 5: Solve for x
    x = 67,134,763.18/9,147.33
  6. Step 6: Final answer
    x = 7,339.27

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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.