Home / 15,833.20-21,849.72-8,759.47

Finding the Fourth Proportional to 15,833.20, 21,849.72 and 8,759.47

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Solution

The fourth proportional to 15,833.20, 21,849.72 and 8,759.47 is: 12,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,833.20 : 21,849.72 = 8,759.47 : x
  2. Step 2: Convert to fraction form
    15,833.20/21,849.72 = 8,759.47/x
  3. Step 3: Cross multiply
    15,833.20x = 21,849.72 × 8,759.47
  4. Step 4: Simplify right side
    15,833.20x = 191,391,966.85
  5. Step 5: Solve for x
    x = 191,391,966.85/15,833.20
  6. Step 6: Final answer
    x = 12,088.02

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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.