Home / 15,704.52-21,666.06-8,986.56

Finding the Fourth Proportional to 15,704.52, 21,666.06 and 8,986.56

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Solution

The fourth proportional to 15,704.52, 21,666.06 and 8,986.56 is: 12,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.52 : 21,666.06 = 8,986.56 : x
  2. Step 2: Convert to fraction form
    15,704.52/21,666.06 = 8,986.56/x
  3. Step 3: Cross multiply
    15,704.52x = 21,666.06 × 8,986.56
  4. Step 4: Simplify right side
    15,704.52x = 194,703,348.15
  5. Step 5: Solve for x
    x = 194,703,348.15/15,704.52
  6. Step 6: Final answer
    x = 12,397.92

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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.