Home / 15,829.12-21,844.56-8,755.68

Finding the Fourth Proportional to 15,829.12, 21,844.56 and 8,755.68

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Solution

The fourth proportional to 15,829.12, 21,844.56 and 8,755.68 is: 12,083.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.12 : 21,844.56 = 8,755.68 : x
  2. Step 2: Convert to fraction form
    15,829.12/21,844.56 = 8,755.68/x
  3. Step 3: Cross multiply
    15,829.12x = 21,844.56 × 8,755.68
  4. Step 4: Simplify right side
    15,829.12x = 191,263,977.10
  5. Step 5: Solve for x
    x = 191,263,977.10/15,829.12
  6. Step 6: Final answer
    x = 12,083.05

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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.