Home / 12,391.14-18,575.76-9,482.43

Finding the Fourth Proportional to 12,391.14, 18,575.76 and 9,482.43

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Solution

The fourth proportional to 12,391.14, 18,575.76 and 9,482.43 is: 14,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.14 : 18,575.76 = 9,482.43 : x
  2. Step 2: Convert to fraction form
    12,391.14/18,575.76 = 9,482.43/x
  3. Step 3: Cross multiply
    12,391.14x = 18,575.76 × 9,482.43
  4. Step 4: Simplify right side
    12,391.14x = 176,143,343.90
  5. Step 5: Solve for x
    x = 176,143,343.90/12,391.14
  6. Step 6: Final answer
    x = 14,215.27

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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.