Home / 13,694.04-18,897.30-8,397.72

Finding the Fourth Proportional to 13,694.04, 18,897.30 and 8,397.72

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Solution

The fourth proportional to 13,694.04, 18,897.30 and 8,397.72 is: 11,588.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.04 : 18,897.30 = 8,397.72 : x
  2. Step 2: Convert to fraction form
    13,694.04/18,897.30 = 8,397.72/x
  3. Step 3: Cross multiply
    13,694.04x = 18,897.30 × 8,397.72
  4. Step 4: Simplify right side
    13,694.04x = 158,694,234.16
  5. Step 5: Solve for x
    x = 158,694,234.16/13,694.04
  6. Step 6: Final answer
    x = 11,588.56

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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.