Home / 15,260.80-21,060.05-8,454.96

Finding the Fourth Proportional to 15,260.80, 21,060.05 and 8,454.96

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Solution

The fourth proportional to 15,260.80, 21,060.05 and 8,454.96 is: 11,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,260.80 : 21,060.05 = 8,454.96 : x
  2. Step 2: Convert to fraction form
    15,260.80/21,060.05 = 8,454.96/x
  3. Step 3: Cross multiply
    15,260.80x = 21,060.05 × 8,454.96
  4. Step 4: Simplify right side
    15,260.80x = 178,061,932.92
  5. Step 5: Solve for x
    x = 178,061,932.92/15,260.80
  6. Step 6: Final answer
    x = 11,667.93

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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.