Home / 18,168.95-27,228.82-12,862.74

Finding the Fourth Proportional to 18,168.95, 27,228.82 and 12,862.74

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Solution

The fourth proportional to 18,168.95, 27,228.82 and 12,862.74 is: 19,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.95 : 27,228.82 = 12,862.74 : x
  2. Step 2: Convert to fraction form
    18,168.95/27,228.82 = 12,862.74/x
  3. Step 3: Cross multiply
    18,168.95x = 27,228.82 × 12,862.74
  4. Step 4: Simplify right side
    18,168.95x = 350,237,200.01
  5. Step 5: Solve for x
    x = 350,237,200.01/18,168.95
  6. Step 6: Final answer
    x = 19,276.69

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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.