Home / 9,371.12-12,932.10-5,179.34

Finding the Fourth Proportional to 9,371.12, 12,932.10 and 5,179.34

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Solution

The fourth proportional to 9,371.12, 12,932.10 and 5,179.34 is: 7,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.12 : 12,932.10 = 5,179.34 : x
  2. Step 2: Convert to fraction form
    9,371.12/12,932.10 = 5,179.34/x
  3. Step 3: Cross multiply
    9,371.12x = 12,932.10 × 5,179.34
  4. Step 4: Simplify right side
    9,371.12x = 66,979,742.81
  5. Step 5: Solve for x
    x = 66,979,742.81/9,371.12
  6. Step 6: Final answer
    x = 7,147.46

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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.