Home / 15,121.04-22,642.68-12,788.24

Finding the Fourth Proportional to 15,121.04, 22,642.68 and 12,788.24

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Solution

The fourth proportional to 15,121.04, 22,642.68 and 12,788.24 is: 19,149.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.04 : 22,642.68 = 12,788.24 : x
  2. Step 2: Convert to fraction form
    15,121.04/22,642.68 = 12,788.24/x
  3. Step 3: Cross multiply
    15,121.04x = 22,642.68 × 12,788.24
  4. Step 4: Simplify right side
    15,121.04x = 289,560,026.08
  5. Step 5: Solve for x
    x = 289,560,026.08/15,121.04
  6. Step 6: Final answer
    x = 19,149.48

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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.