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Finding the Fourth Proportional to 8,891.56, 12,271.94 and 5,306.77

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Solution

The fourth proportional to 8,891.56, 12,271.94 and 5,306.77 is: 7,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.56 : 12,271.94 = 5,306.77 : x
  2. Step 2: Convert to fraction form
    8,891.56/12,271.94 = 5,306.77/x
  3. Step 3: Cross multiply
    8,891.56x = 12,271.94 × 5,306.77
  4. Step 4: Simplify right side
    8,891.56x = 65,124,363.03
  5. Step 5: Solve for x
    x = 65,124,363.03/8,891.56
  6. Step 6: Final answer
    x = 7,324.29

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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.