Home / 15,999.25-23,979.41-11,320.61

Finding the Fourth Proportional to 15,999.25, 23,979.41 and 11,320.61

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Solution

The fourth proportional to 15,999.25, 23,979.41 and 11,320.61 is: 16,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.25 : 23,979.41 = 11,320.61 : x
  2. Step 2: Convert to fraction form
    15,999.25/23,979.41 = 11,320.61/x
  3. Step 3: Cross multiply
    15,999.25x = 23,979.41 × 11,320.61
  4. Step 4: Simplify right side
    15,999.25x = 271,461,372.14
  5. Step 5: Solve for x
    x = 271,461,372.14/15,999.25
  6. Step 6: Final answer
    x = 16,967.14

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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.