Home / 14,618.80-21,789.23-13,788.46

Finding the Fourth Proportional to 14,618.80, 21,789.23 and 13,788.46

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Solution

The fourth proportional to 14,618.80, 21,789.23 and 13,788.46 is: 20,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.80 : 21,789.23 = 13,788.46 : x
  2. Step 2: Convert to fraction form
    14,618.80/21,789.23 = 13,788.46/x
  3. Step 3: Cross multiply
    14,618.80x = 21,789.23 × 13,788.46
  4. Step 4: Simplify right side
    14,618.80x = 300,439,926.29
  5. Step 5: Solve for x
    x = 300,439,926.29/14,618.80
  6. Step 6: Final answer
    x = 20,551.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.