Home / 9,180.40-12,669.46-5,202.79

Finding the Fourth Proportional to 9,180.40, 12,669.46 and 5,202.79

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Solution

The fourth proportional to 9,180.40, 12,669.46 and 5,202.79 is: 7,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.40 : 12,669.46 = 5,202.79 : x
  2. Step 2: Convert to fraction form
    9,180.40/12,669.46 = 5,202.79/x
  3. Step 3: Cross multiply
    9,180.40x = 12,669.46 × 5,202.79
  4. Step 4: Simplify right side
    9,180.40x = 65,916,513.78
  5. Step 5: Solve for x
    x = 65,916,513.78/9,180.40
  6. Step 6: Final answer
    x = 7,180.14

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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.