Home / 12,160.95-18,240.77-3,727.45

Finding the Fourth Proportional to 12,160.95, 18,240.77 and 3,727.45

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Solution

The fourth proportional to 12,160.95, 18,240.77 and 3,727.45 is: 5,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.95 : 18,240.77 = 3,727.45 : x
  2. Step 2: Convert to fraction form
    12,160.95/18,240.77 = 3,727.45/x
  3. Step 3: Cross multiply
    12,160.95x = 18,240.77 × 3,727.45
  4. Step 4: Simplify right side
    12,160.95x = 67,991,448.30
  5. Step 5: Solve for x
    x = 67,991,448.30/12,160.95
  6. Step 6: Final answer
    x = 5,590.96

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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.