Home / 15,972.90-22,042.64-8,899.58

Finding the Fourth Proportional to 15,972.90, 22,042.64 and 8,899.58

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Solution

The fourth proportional to 15,972.90, 22,042.64 and 8,899.58 is: 12,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.90 : 22,042.64 = 8,899.58 : x
  2. Step 2: Convert to fraction form
    15,972.90/22,042.64 = 8,899.58/x
  3. Step 3: Cross multiply
    15,972.90x = 22,042.64 × 8,899.58
  4. Step 4: Simplify right side
    15,972.90x = 196,170,238.09
  5. Step 5: Solve for x
    x = 196,170,238.09/15,972.90
  6. Step 6: Final answer
    x = 12,281.44

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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.