Home / 12,949.45-19,424.19-5,549.11

Finding the Fourth Proportional to 12,949.45, 19,424.19 and 5,549.11

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Solution

The fourth proportional to 12,949.45, 19,424.19 and 5,549.11 is: 8,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.45 : 19,424.19 = 5,549.11 : x
  2. Step 2: Convert to fraction form
    12,949.45/19,424.19 = 5,549.11/x
  3. Step 3: Cross multiply
    12,949.45x = 19,424.19 × 5,549.11
  4. Step 4: Simplify right side
    12,949.45x = 107,786,966.97
  5. Step 5: Solve for x
    x = 107,786,966.97/12,949.45
  6. Step 6: Final answer
    x = 8,323.67

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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.