Home / 15,918.43-21,967.28-8,844.70

Finding the Fourth Proportional to 15,918.43, 21,967.28 and 8,844.70

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Solution

The fourth proportional to 15,918.43, 21,967.28 and 8,844.70 is: 12,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.43 : 21,967.28 = 8,844.70 : x
  2. Step 2: Convert to fraction form
    15,918.43/21,967.28 = 8,844.70/x
  3. Step 3: Cross multiply
    15,918.43x = 21,967.28 × 8,844.70
  4. Step 4: Simplify right side
    15,918.43x = 194,294,001.42
  5. Step 5: Solve for x
    x = 194,294,001.42/15,918.43
  6. Step 6: Final answer
    x = 12,205.60

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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.