Home / 15,829.25-21,842.90-8,755.52

Finding the Fourth Proportional to 15,829.25, 21,842.90 and 8,755.52

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Solution

The fourth proportional to 15,829.25, 21,842.90 and 8,755.52 is: 12,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.25 : 21,842.90 = 8,755.52 : x
  2. Step 2: Convert to fraction form
    15,829.25/21,842.90 = 8,755.52/x
  3. Step 3: Cross multiply
    15,829.25x = 21,842.90 × 8,755.52
  4. Step 4: Simplify right side
    15,829.25x = 191,245,947.81
  5. Step 5: Solve for x
    x = 191,245,947.81/15,829.25
  6. Step 6: Final answer
    x = 12,081.81

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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.