Home / 15,801.80-21,806.32-8,727.76

Finding the Fourth Proportional to 15,801.80, 21,806.32 and 8,727.76

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Solution

The fourth proportional to 15,801.80, 21,806.32 and 8,727.76 is: 12,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,801.80 : 21,806.32 = 8,727.76 : x
  2. Step 2: Convert to fraction form
    15,801.80/21,806.32 = 8,727.76/x
  3. Step 3: Cross multiply
    15,801.80x = 21,806.32 × 8,727.76
  4. Step 4: Simplify right side
    15,801.80x = 190,320,327.44
  5. Step 5: Solve for x
    x = 190,320,327.44/15,801.80
  6. Step 6: Final answer
    x = 12,044.22

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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.