Home / 12,934.67-19,401.87-9,119.61

Finding the Fourth Proportional to 12,934.67, 19,401.87 and 9,119.61

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Solution

The fourth proportional to 12,934.67, 19,401.87 and 9,119.61 is: 13,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,934.67 : 19,401.87 = 9,119.61 : x
  2. Step 2: Convert to fraction form
    12,934.67/19,401.87 = 9,119.61/x
  3. Step 3: Cross multiply
    12,934.67x = 19,401.87 × 9,119.61
  4. Step 4: Simplify right side
    12,934.67x = 176,937,442.07
  5. Step 5: Solve for x
    x = 176,937,442.07/12,934.67
  6. Step 6: Final answer
    x = 13,679.32

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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.