Home / 12,541.20-18,810.48-5,146.44

Finding the Fourth Proportional to 12,541.20, 18,810.48 and 5,146.44

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Solution

The fourth proportional to 12,541.20, 18,810.48 and 5,146.44 is: 7,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.20 : 18,810.48 = 5,146.44 : x
  2. Step 2: Convert to fraction form
    12,541.20/18,810.48 = 5,146.44/x
  3. Step 3: Cross multiply
    12,541.20x = 18,810.48 × 5,146.44
  4. Step 4: Simplify right side
    12,541.20x = 96,807,006.69
  5. Step 5: Solve for x
    x = 96,807,006.69/12,541.20
  6. Step 6: Final answer
    x = 7,719.12

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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.