Home / 12,160.45-18,240.02-3,726.95

Finding the Fourth Proportional to 12,160.45, 18,240.02 and 3,726.95

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Solution

The fourth proportional to 12,160.45, 18,240.02 and 3,726.95 is: 5,590.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.45 : 18,240.02 = 3,726.95 : x
  2. Step 2: Convert to fraction form
    12,160.45/18,240.02 = 3,726.95/x
  3. Step 3: Cross multiply
    12,160.45x = 18,240.02 × 3,726.95
  4. Step 4: Simplify right side
    12,160.45x = 67,979,532.70
  5. Step 5: Solve for x
    x = 67,979,532.70/12,160.45
  6. Step 6: Final answer
    x = 5,590.21

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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.