Home / 15,999.88-22,076.40-9,284.65

Finding the Fourth Proportional to 15,999.88, 22,076.40 and 9,284.65

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Solution

The fourth proportional to 15,999.88, 22,076.40 and 9,284.65 is: 12,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.88 : 22,076.40 = 9,284.65 : x
  2. Step 2: Convert to fraction form
    15,999.88/22,076.40 = 9,284.65/x
  3. Step 3: Cross multiply
    15,999.88x = 22,076.40 × 9,284.65
  4. Step 4: Simplify right side
    15,999.88x = 204,971,636.75
  5. Step 5: Solve for x
    x = 204,971,636.75/15,999.88
  6. Step 6: Final answer
    x = 12,810.82

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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.