Home / 12,079.76-18,117.54-3,195.18

Finding the Fourth Proportional to 12,079.76, 18,117.54 and 3,195.18

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Solution

The fourth proportional to 12,079.76, 18,117.54 and 3,195.18 is: 4,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.76 : 18,117.54 = 3,195.18 : x
  2. Step 2: Convert to fraction form
    12,079.76/18,117.54 = 3,195.18/x
  3. Step 3: Cross multiply
    12,079.76x = 18,117.54 × 3,195.18
  4. Step 4: Simplify right side
    12,079.76x = 57,888,801.46
  5. Step 5: Solve for x
    x = 57,888,801.46/12,079.76
  6. Step 6: Final answer
    x = 4,792.21

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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.