Home / 9,218.14-12,717.42-5,675.20

Finding the Fourth Proportional to 9,218.14, 12,717.42 and 5,675.20

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Solution

The fourth proportional to 9,218.14, 12,717.42 and 5,675.20 is: 7,829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.14 : 12,717.42 = 5,675.20 : x
  2. Step 2: Convert to fraction form
    9,218.14/12,717.42 = 5,675.20/x
  3. Step 3: Cross multiply
    9,218.14x = 12,717.42 × 5,675.20
  4. Step 4: Simplify right side
    9,218.14x = 72,173,901.98
  5. Step 5: Solve for x
    x = 72,173,901.98/9,218.14
  6. Step 6: Final answer
    x = 7,829.55

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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.