Home / 9,180.48-12,668.85-5,147.04

Finding the Fourth Proportional to 9,180.48, 12,668.85 and 5,147.04

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Solution

The fourth proportional to 9,180.48, 12,668.85 and 5,147.04 is: 7,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.48 : 12,668.85 = 5,147.04 : x
  2. Step 2: Convert to fraction form
    9,180.48/12,668.85 = 5,147.04/x
  3. Step 3: Cross multiply
    9,180.48x = 12,668.85 × 5,147.04
  4. Step 4: Simplify right side
    9,180.48x = 65,207,077.70
  5. Step 5: Solve for x
    x = 65,207,077.70/9,180.48
  6. Step 6: Final answer
    x = 7,102.80

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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.