Home / 13,684.25-18,885.62-8,306.27

Finding the Fourth Proportional to 13,684.25, 18,885.62 and 8,306.27

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Solution

The fourth proportional to 13,684.25, 18,885.62 and 8,306.27 is: 11,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.25 : 18,885.62 = 8,306.27 : x
  2. Step 2: Convert to fraction form
    13,684.25/18,885.62 = 8,306.27/x
  3. Step 3: Cross multiply
    13,684.25x = 18,885.62 × 8,306.27
  4. Step 4: Simplify right side
    13,684.25x = 156,868,985.17
  5. Step 5: Solve for x
    x = 156,868,985.17/13,684.25
  6. Step 6: Final answer
    x = 11,463.47

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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.