Home / 14,439.33-21,656.84-11,989.89

Finding the Fourth Proportional to 14,439.33, 21,656.84 and 11,989.89

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Solution

The fourth proportional to 14,439.33, 21,656.84 and 11,989.89 is: 17,983.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.33 : 21,656.84 = 11,989.89 : x
  2. Step 2: Convert to fraction form
    14,439.33/21,656.84 = 11,989.89/x
  3. Step 3: Cross multiply
    14,439.33x = 21,656.84 × 11,989.89
  4. Step 4: Simplify right side
    14,439.33x = 259,663,069.40
  5. Step 5: Solve for x
    x = 259,663,069.40/14,439.33
  6. Step 6: Final answer
    x = 17,983.04

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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.