Home / 12,265.23-16,931.10-8,291.73

Finding the Fourth Proportional to 12,265.23, 16,931.10 and 8,291.73

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Solution

The fourth proportional to 12,265.23, 16,931.10 and 8,291.73 is: 11,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.23 : 16,931.10 = 8,291.73 : x
  2. Step 2: Convert to fraction form
    12,265.23/16,931.10 = 8,291.73/x
  3. Step 3: Cross multiply
    12,265.23x = 16,931.10 × 8,291.73
  4. Step 4: Simplify right side
    12,265.23x = 140,388,109.80
  5. Step 5: Solve for x
    x = 140,388,109.80/12,265.23
  6. Step 6: Final answer
    x = 11,446.02

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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.