Home / 9,719.88-14,578.20-3,145.11

Finding the Fourth Proportional to 9,719.88, 14,578.20 and 3,145.11

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Solution

The fourth proportional to 9,719.88, 14,578.20 and 3,145.11 is: 4,717.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.88 : 14,578.20 = 3,145.11 : x
  2. Step 2: Convert to fraction form
    9,719.88/14,578.20 = 3,145.11/x
  3. Step 3: Cross multiply
    9,719.88x = 14,578.20 × 3,145.11
  4. Step 4: Simplify right side
    9,719.88x = 45,850,042.60
  5. Step 5: Solve for x
    x = 45,850,042.60/9,719.88
  6. Step 6: Final answer
    x = 4,717.14

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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.