Home / 15,918.21-21,966.17-8,844.39

Finding the Fourth Proportional to 15,918.21, 21,966.17 and 8,844.39

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Solution

The fourth proportional to 15,918.21, 21,966.17 and 8,844.39 is: 12,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.21 : 21,966.17 = 8,844.39 : x
  2. Step 2: Convert to fraction form
    15,918.21/21,966.17 = 8,844.39/x
  3. Step 3: Cross multiply
    15,918.21x = 21,966.17 × 8,844.39
  4. Step 4: Simplify right side
    15,918.21x = 194,277,330.06
  5. Step 5: Solve for x
    x = 194,277,330.06/15,918.21
  6. Step 6: Final answer
    x = 12,204.72

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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.