Home / 12,767.20-17,618.59-7,101.91

Finding the Fourth Proportional to 12,767.20, 17,618.59 and 7,101.91

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Solution

The fourth proportional to 12,767.20, 17,618.59 and 7,101.91 is: 9,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.20 : 17,618.59 = 7,101.91 : x
  2. Step 2: Convert to fraction form
    12,767.20/17,618.59 = 7,101.91/x
  3. Step 3: Cross multiply
    12,767.20x = 17,618.59 × 7,101.91
  4. Step 4: Simplify right side
    12,767.20x = 125,125,640.51
  5. Step 5: Solve for x
    x = 125,125,640.51/12,767.20
  6. Step 6: Final answer
    x = 9,800.55

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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.