Home / 12,089.08-18,127.02-8,140.18

Finding the Fourth Proportional to 12,089.08, 18,127.02 and 8,140.18

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Solution

The fourth proportional to 12,089.08, 18,127.02 and 8,140.18 is: 12,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.08 : 18,127.02 = 8,140.18 : x
  2. Step 2: Convert to fraction form
    12,089.08/18,127.02 = 8,140.18/x
  3. Step 3: Cross multiply
    12,089.08x = 18,127.02 × 8,140.18
  4. Step 4: Simplify right side
    12,089.08x = 147,557,205.66
  5. Step 5: Solve for x
    x = 147,557,205.66/12,089.08
  6. Step 6: Final answer
    x = 12,205.83

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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.