Home / 15,734.50-21,713.61-8,660.89

Finding the Fourth Proportional to 15,734.50, 21,713.61 and 8,660.89

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Solution

The fourth proportional to 15,734.50, 21,713.61 and 8,660.89 is: 11,952.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.50 : 21,713.61 = 8,660.89 : x
  2. Step 2: Convert to fraction form
    15,734.50/21,713.61 = 8,660.89/x
  3. Step 3: Cross multiply
    15,734.50x = 21,713.61 × 8,660.89
  4. Step 4: Simplify right side
    15,734.50x = 188,059,187.71
  5. Step 5: Solve for x
    x = 188,059,187.71/15,734.50
  6. Step 6: Final answer
    x = 11,952.03

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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.