Home / 15,727.95-21,704.04-8,654.31

Finding the Fourth Proportional to 15,727.95, 21,704.04 and 8,654.31

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Solution

The fourth proportional to 15,727.95, 21,704.04 and 8,654.31 is: 11,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.95 : 21,704.04 = 8,654.31 : x
  2. Step 2: Convert to fraction form
    15,727.95/21,704.04 = 8,654.31/x
  3. Step 3: Cross multiply
    15,727.95x = 21,704.04 × 8,654.31
  4. Step 4: Simplify right side
    15,727.95x = 187,833,490.41
  5. Step 5: Solve for x
    x = 187,833,490.41/15,727.95
  6. Step 6: Final answer
    x = 11,942.66

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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.