Home / 7,981.23-11,013.68-4,443.81

Finding the Fourth Proportional to 7,981.23, 11,013.68 and 4,443.81

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Solution

The fourth proportional to 7,981.23, 11,013.68 and 4,443.81 is: 6,132.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.23 : 11,013.68 = 4,443.81 : x
  2. Step 2: Convert to fraction form
    7,981.23/11,013.68 = 4,443.81/x
  3. Step 3: Cross multiply
    7,981.23x = 11,013.68 × 4,443.81
  4. Step 4: Simplify right side
    7,981.23x = 48,942,679.10
  5. Step 5: Solve for x
    x = 48,942,679.10/7,981.23
  6. Step 6: Final answer
    x = 6,132.22

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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.