Home / 14,999.29-20,686.49-11,231.42

Finding the Fourth Proportional to 14,999.29, 20,686.49 and 11,231.42

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Solution

The fourth proportional to 14,999.29, 20,686.49 and 11,231.42 is: 15,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.29 : 20,686.49 = 11,231.42 : x
  2. Step 2: Convert to fraction form
    14,999.29/20,686.49 = 11,231.42/x
  3. Step 3: Cross multiply
    14,999.29x = 20,686.49 × 11,231.42
  4. Step 4: Simplify right side
    14,999.29x = 232,338,657.52
  5. Step 5: Solve for x
    x = 232,338,657.52/14,999.29
  6. Step 6: Final answer
    x = 15,489.98

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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.