Home / 9,118.10-12,583.08-5,340.44

Finding the Fourth Proportional to 9,118.10, 12,583.08 and 5,340.44

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Solution

The fourth proportional to 9,118.10, 12,583.08 and 5,340.44 is: 7,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.10 : 12,583.08 = 5,340.44 : x
  2. Step 2: Convert to fraction form
    9,118.10/12,583.08 = 5,340.44/x
  3. Step 3: Cross multiply
    9,118.10x = 12,583.08 × 5,340.44
  4. Step 4: Simplify right side
    9,118.10x = 67,199,183.76
  5. Step 5: Solve for x
    x = 67,199,183.76/9,118.10
  6. Step 6: Final answer
    x = 7,369.87

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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.