Home / 13,660.80-18,834.54-9,177.44

Finding the Fourth Proportional to 13,660.80, 18,834.54 and 9,177.44

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Solution

The fourth proportional to 13,660.80, 18,834.54 and 9,177.44 is: 12,653.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.80 : 18,834.54 = 9,177.44 : x
  2. Step 2: Convert to fraction form
    13,660.80/18,834.54 = 9,177.44/x
  3. Step 3: Cross multiply
    13,660.80x = 18,834.54 × 9,177.44
  4. Step 4: Simplify right side
    13,660.80x = 172,852,860.78
  5. Step 5: Solve for x
    x = 172,852,860.78/13,660.80
  6. Step 6: Final answer
    x = 12,653.20

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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.