Home / 12,187.14-18,283.45-4,395.95

Finding the Fourth Proportional to 12,187.14, 18,283.45 and 4,395.95

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Solution

The fourth proportional to 12,187.14, 18,283.45 and 4,395.95 is: 6,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.14 : 18,283.45 = 4,395.95 : x
  2. Step 2: Convert to fraction form
    12,187.14/18,283.45 = 4,395.95/x
  3. Step 3: Cross multiply
    12,187.14x = 18,283.45 × 4,395.95
  4. Step 4: Simplify right side
    12,187.14x = 80,373,166.75
  5. Step 5: Solve for x
    x = 80,373,166.75/12,187.14
  6. Step 6: Final answer
    x = 6,594.92

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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.