Home / 7,981.33-11,013.27-4,578.17

Finding the Fourth Proportional to 7,981.33, 11,013.27 and 4,578.17

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Solution

The fourth proportional to 7,981.33, 11,013.27 and 4,578.17 is: 6,317.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.33 : 11,013.27 = 4,578.17 : x
  2. Step 2: Convert to fraction form
    7,981.33/11,013.27 = 4,578.17/x
  3. Step 3: Cross multiply
    7,981.33x = 11,013.27 × 4,578.17
  4. Step 4: Simplify right side
    7,981.33x = 50,420,599.91
  5. Step 5: Solve for x
    x = 50,420,599.91/7,981.33
  6. Step 6: Final answer
    x = 6,317.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.