Home / 15,874.96-21,905.76-8,799.52

Finding the Fourth Proportional to 15,874.96, 21,905.76 and 8,799.52

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Solution

The fourth proportional to 15,874.96, 21,905.76 and 8,799.52 is: 12,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.96 : 21,905.76 = 8,799.52 : x
  2. Step 2: Convert to fraction form
    15,874.96/21,905.76 = 8,799.52/x
  3. Step 3: Cross multiply
    15,874.96x = 21,905.76 × 8,799.52
  4. Step 4: Simplify right side
    15,874.96x = 192,760,173.24
  5. Step 5: Solve for x
    x = 192,760,173.24/15,874.96
  6. Step 6: Final answer
    x = 12,142.40

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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.