Home / 12,237.20-18,345.66-10,151.44

Finding the Fourth Proportional to 12,237.20, 18,345.66 and 10,151.44

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Solution

The fourth proportional to 12,237.20, 18,345.66 and 10,151.44 is: 15,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.20 : 18,345.66 = 10,151.44 : x
  2. Step 2: Convert to fraction form
    12,237.20/18,345.66 = 10,151.44/x
  3. Step 3: Cross multiply
    12,237.20x = 18,345.66 × 10,151.44
  4. Step 4: Simplify right side
    12,237.20x = 186,234,866.75
  5. Step 5: Solve for x
    x = 186,234,866.75/12,237.20
  6. Step 6: Final answer
    x = 15,218.75

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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.