Home / 12,143.10-16,758.45-6,837.60

Finding the Fourth Proportional to 12,143.10, 16,758.45 and 6,837.60

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Solution

The fourth proportional to 12,143.10, 16,758.45 and 6,837.60 is: 9,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.10 : 16,758.45 = 6,837.60 : x
  2. Step 2: Convert to fraction form
    12,143.10/16,758.45 = 6,837.60/x
  3. Step 3: Cross multiply
    12,143.10x = 16,758.45 × 6,837.60
  4. Step 4: Simplify right side
    12,143.10x = 114,587,577.72
  5. Step 5: Solve for x
    x = 114,587,577.72/12,143.10
  6. Step 6: Final answer
    x = 9,436.44

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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.