Home / 22,718.88-34,074.68-7,140.15

Finding the Fourth Proportional to 22,718.88, 34,074.68 and 7,140.15

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Solution

The fourth proportional to 22,718.88, 34,074.68 and 7,140.15 is: 10,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.88 : 34,074.68 = 7,140.15 : x
  2. Step 2: Convert to fraction form
    22,718.88/34,074.68 = 7,140.15/x
  3. Step 3: Cross multiply
    22,718.88x = 34,074.68 × 7,140.15
  4. Step 4: Simplify right side
    22,718.88x = 243,298,290.70
  5. Step 5: Solve for x
    x = 243,298,290.70/22,718.88
  6. Step 6: Final answer
    x = 10,709.08

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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.