Home / 12,747.17-17,590.85-7,081.68

Finding the Fourth Proportional to 12,747.17, 17,590.85 and 7,081.68

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Solution

The fourth proportional to 12,747.17, 17,590.85 and 7,081.68 is: 9,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.17 : 17,590.85 = 7,081.68 : x
  2. Step 2: Convert to fraction form
    12,747.17/17,590.85 = 7,081.68/x
  3. Step 3: Cross multiply
    12,747.17x = 17,590.85 × 7,081.68
  4. Step 4: Simplify right side
    12,747.17x = 124,572,768.63
  5. Step 5: Solve for x
    x = 124,572,768.63/12,747.17
  6. Step 6: Final answer
    x = 9,772.58

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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.