Home / 15,934.38-22,011.93-12,768.71

Finding the Fourth Proportional to 15,934.38, 22,011.93 and 12,768.71

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Solution

The fourth proportional to 15,934.38, 22,011.93 and 12,768.71 is: 17,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.38 : 22,011.93 = 12,768.71 : x
  2. Step 2: Convert to fraction form
    15,934.38/22,011.93 = 12,768.71/x
  3. Step 3: Cross multiply
    15,934.38x = 22,011.93 × 12,768.71
  4. Step 4: Simplify right side
    15,934.38x = 281,063,840.65
  5. Step 5: Solve for x
    x = 281,063,840.65/15,934.38
  6. Step 6: Final answer
    x = 17,638.83

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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.