Home / 18,125.80-25,006.98-11,847.40

Finding the Fourth Proportional to 18,125.80, 25,006.98 and 11,847.40

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Solution

The fourth proportional to 18,125.80, 25,006.98 and 11,847.40 is: 16,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.80 : 25,006.98 = 11,847.40 : x
  2. Step 2: Convert to fraction form
    18,125.80/25,006.98 = 11,847.40/x
  3. Step 3: Cross multiply
    18,125.80x = 25,006.98 × 11,847.40
  4. Step 4: Simplify right side
    18,125.80x = 296,267,694.85
  5. Step 5: Solve for x
    x = 296,267,694.85/18,125.80
  6. Step 6: Final answer
    x = 16,345.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.