Home / 9,140.92-13,711.34-2,215.42

Finding the Fourth Proportional to 9,140.92, 13,711.34 and 2,215.42

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Solution

The fourth proportional to 9,140.92, 13,711.34 and 2,215.42 is: 3,323.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.92 : 13,711.34 = 2,215.42 : x
  2. Step 2: Convert to fraction form
    9,140.92/13,711.34 = 2,215.42/x
  3. Step 3: Cross multiply
    9,140.92x = 13,711.34 × 2,215.42
  4. Step 4: Simplify right side
    9,140.92x = 30,376,365.79
  5. Step 5: Solve for x
    x = 30,376,365.79/9,140.92
  6. Step 6: Final answer
    x = 3,323.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.