Home / 12,433.13-17,140.85-8,447.32

Finding the Fourth Proportional to 12,433.13, 17,140.85 and 8,447.32

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Solution

The fourth proportional to 12,433.13, 17,140.85 and 8,447.32 is: 11,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.13 : 17,140.85 = 8,447.32 : x
  2. Step 2: Convert to fraction form
    12,433.13/17,140.85 = 8,447.32/x
  3. Step 3: Cross multiply
    12,433.13x = 17,140.85 × 8,447.32
  4. Step 4: Simplify right side
    12,433.13x = 144,794,255.89
  5. Step 5: Solve for x
    x = 144,794,255.89/12,433.13
  6. Step 6: Final answer
    x = 11,645.84

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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.