Home / 12,746.08-19,119.11-3,981.75

Finding the Fourth Proportional to 12,746.08, 19,119.11 and 3,981.75

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Solution

The fourth proportional to 12,746.08, 19,119.11 and 3,981.75 is: 5,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.08 : 19,119.11 = 3,981.75 : x
  2. Step 2: Convert to fraction form
    12,746.08/19,119.11 = 3,981.75/x
  3. Step 3: Cross multiply
    12,746.08x = 19,119.11 × 3,981.75
  4. Step 4: Simplify right side
    12,746.08x = 76,127,516.24
  5. Step 5: Solve for x
    x = 76,127,516.24/12,746.08
  6. Step 6: Final answer
    x = 5,972.62

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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.