Home / 15,769.14-21,761.65-8,695.56

Finding the Fourth Proportional to 15,769.14, 21,761.65 and 8,695.56

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Solution

The fourth proportional to 15,769.14, 21,761.65 and 8,695.56 is: 12,000.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.14 : 21,761.65 = 8,695.56 : x
  2. Step 2: Convert to fraction form
    15,769.14/21,761.65 = 8,695.56/x
  3. Step 3: Cross multiply
    15,769.14x = 21,761.65 × 8,695.56
  4. Step 4: Simplify right side
    15,769.14x = 189,229,733.27
  5. Step 5: Solve for x
    x = 189,229,733.27/15,769.14
  6. Step 6: Final answer
    x = 12,000.00

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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.