Home / 9,170.80-12,655.75-5,394.12

Finding the Fourth Proportional to 9,170.80, 12,655.75 and 5,394.12

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Solution

The fourth proportional to 9,170.80, 12,655.75 and 5,394.12 is: 7,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.80 : 12,655.75 = 5,394.12 : x
  2. Step 2: Convert to fraction form
    9,170.80/12,655.75 = 5,394.12/x
  3. Step 3: Cross multiply
    9,170.80x = 12,655.75 × 5,394.12
  4. Step 4: Simplify right side
    9,170.80x = 68,266,634.19
  5. Step 5: Solve for x
    x = 68,266,634.19/9,170.80
  6. Step 6: Final answer
    x = 7,443.92

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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.