Home / 9,180.48-12,668.64-5,202.18

Finding the Fourth Proportional to 9,180.48, 12,668.64 and 5,202.18

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Solution

The fourth proportional to 9,180.48, 12,668.64 and 5,202.18 is: 7,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.48 : 12,668.64 = 5,202.18 : x
  2. Step 2: Convert to fraction form
    9,180.48/12,668.64 = 5,202.18/x
  3. Step 3: Cross multiply
    9,180.48x = 12,668.64 × 5,202.18
  4. Step 4: Simplify right side
    9,180.48x = 65,904,545.64
  5. Step 5: Solve for x
    x = 65,904,545.64/9,180.48
  6. Step 6: Final answer
    x = 7,178.77

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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.