Home / 15,917.40-21,966.12-8,843.94

Finding the Fourth Proportional to 15,917.40, 21,966.12 and 8,843.94

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Solution

The fourth proportional to 15,917.40, 21,966.12 and 8,843.94 is: 12,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.40 : 21,966.12 = 8,843.94 : x
  2. Step 2: Convert to fraction form
    15,917.40/21,966.12 = 8,843.94/x
  3. Step 3: Cross multiply
    15,917.40x = 21,966.12 × 8,843.94
  4. Step 4: Simplify right side
    15,917.40x = 194,267,047.31
  5. Step 5: Solve for x
    x = 194,267,047.31/15,917.40
  6. Step 6: Final answer
    x = 12,204.70

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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.