Home / 12,129.83-18,195.02-3,364.71

Finding the Fourth Proportional to 12,129.83, 18,195.02 and 3,364.71

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Solution

The fourth proportional to 12,129.83, 18,195.02 and 3,364.71 is: 5,047.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.83 : 18,195.02 = 3,364.71 : x
  2. Step 2: Convert to fraction form
    12,129.83/18,195.02 = 3,364.71/x
  3. Step 3: Cross multiply
    12,129.83x = 18,195.02 × 3,364.71
  4. Step 4: Simplify right side
    12,129.83x = 61,220,965.74
  5. Step 5: Solve for x
    x = 61,220,965.74/12,129.83
  6. Step 6: Final answer
    x = 5,047.14

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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.