Home / 13,226.41-18,251.62-7,561.54

Finding the Fourth Proportional to 13,226.41, 18,251.62 and 7,561.54

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Solution

The fourth proportional to 13,226.41, 18,251.62 and 7,561.54 is: 10,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.41 : 18,251.62 = 7,561.54 : x
  2. Step 2: Convert to fraction form
    13,226.41/18,251.62 = 7,561.54/x
  3. Step 3: Cross multiply
    13,226.41x = 18,251.62 × 7,561.54
  4. Step 4: Simplify right side
    13,226.41x = 138,010,354.69
  5. Step 5: Solve for x
    x = 138,010,354.69/13,226.41
  6. Step 6: Final answer
    x = 10,434.45

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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.