Home / 8,981.10-12,394.08-5,443.56

Finding the Fourth Proportional to 8,981.10, 12,394.08 and 5,443.56

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Solution

The fourth proportional to 8,981.10, 12,394.08 and 5,443.56 is: 7,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.10 : 12,394.08 = 5,443.56 : x
  2. Step 2: Convert to fraction form
    8,981.10/12,394.08 = 5,443.56/x
  3. Step 3: Cross multiply
    8,981.10x = 12,394.08 × 5,443.56
  4. Step 4: Simplify right side
    8,981.10x = 67,467,918.12
  5. Step 5: Solve for x
    x = 67,467,918.12/8,981.10
  6. Step 6: Final answer
    x = 7,512.21

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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.