Home / 7,972.52-11,954.28-3,813.53

Finding the Fourth Proportional to 7,972.52, 11,954.28 and 3,813.53

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Solution

The fourth proportional to 7,972.52, 11,954.28 and 3,813.53 is: 5,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.52 : 11,954.28 = 3,813.53 : x
  2. Step 2: Convert to fraction form
    7,972.52/11,954.28 = 3,813.53/x
  3. Step 3: Cross multiply
    7,972.52x = 11,954.28 × 3,813.53
  4. Step 4: Simplify right side
    7,972.52x = 45,588,005.41
  5. Step 5: Solve for x
    x = 45,588,005.41/7,972.52
  6. Step 6: Final answer
    x = 5,718.14

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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.