Home / 12,190.80-18,275.40-8,032.80

Finding the Fourth Proportional to 12,190.80, 18,275.40 and 8,032.80

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Solution

The fourth proportional to 12,190.80, 18,275.40 and 8,032.80 is: 12,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.80 : 18,275.40 = 8,032.80 : x
  2. Step 2: Convert to fraction form
    12,190.80/18,275.40 = 8,032.80/x
  3. Step 3: Cross multiply
    12,190.80x = 18,275.40 × 8,032.80
  4. Step 4: Simplify right side
    12,190.80x = 146,802,633.12
  5. Step 5: Solve for x
    x = 146,802,633.12/12,190.80
  6. Step 6: Final answer
    x = 12,042.08

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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.