Home / 7,969.24-11,953.68-3,812.20

Finding the Fourth Proportional to 7,969.24, 11,953.68 and 3,812.20

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Solution

The fourth proportional to 7,969.24, 11,953.68 and 3,812.20 is: 5,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.24 : 11,953.68 = 3,812.20 : x
  2. Step 2: Convert to fraction form
    7,969.24/11,953.68 = 3,812.20/x
  3. Step 3: Cross multiply
    7,969.24x = 11,953.68 × 3,812.20
  4. Step 4: Simplify right side
    7,969.24x = 45,569,818.90
  5. Step 5: Solve for x
    x = 45,569,818.90/7,969.24
  6. Step 6: Final answer
    x = 5,718.21

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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.