Home / 9,371.91-12,933.21-5,180.16

Finding the Fourth Proportional to 9,371.91, 12,933.21 and 5,180.16

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Solution

The fourth proportional to 9,371.91, 12,933.21 and 5,180.16 is: 7,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.91 : 12,933.21 = 5,180.16 : x
  2. Step 2: Convert to fraction form
    9,371.91/12,933.21 = 5,180.16/x
  3. Step 3: Cross multiply
    9,371.91x = 12,933.21 × 5,180.16
  4. Step 4: Simplify right side
    9,371.91x = 66,996,097.11
  5. Step 5: Solve for x
    x = 66,996,097.11/9,371.91
  6. Step 6: Final answer
    x = 7,148.61

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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.