Home / 12,025.12-18,034.80-6,178.72

Finding the Fourth Proportional to 12,025.12, 18,034.80 and 6,178.72

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Solution

The fourth proportional to 12,025.12, 18,034.80 and 6,178.72 is: 9,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.12 : 18,034.80 = 6,178.72 : x
  2. Step 2: Convert to fraction form
    12,025.12/18,034.80 = 6,178.72/x
  3. Step 3: Cross multiply
    12,025.12x = 18,034.80 × 6,178.72
  4. Step 4: Simplify right side
    12,025.12x = 111,431,979.46
  5. Step 5: Solve for x
    x = 111,431,979.46/12,025.12
  6. Step 6: Final answer
    x = 9,266.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.