Home / 15,999.86-22,081.82-9,284.05

Finding the Fourth Proportional to 15,999.86, 22,081.82 and 9,284.05

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Solution

The fourth proportional to 15,999.86, 22,081.82 and 9,284.05 is: 12,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.86 : 22,081.82 = 9,284.05 : x
  2. Step 2: Convert to fraction form
    15,999.86/22,081.82 = 9,284.05/x
  3. Step 3: Cross multiply
    15,999.86x = 22,081.82 × 9,284.05
  4. Step 4: Simplify right side
    15,999.86x = 205,008,702.15
  5. Step 5: Solve for x
    x = 205,008,702.15/15,999.86
  6. Step 6: Final answer
    x = 12,813.15

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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.