Home / 12,147.17-18,211.03-5,577.66

Finding the Fourth Proportional to 12,147.17, 18,211.03 and 5,577.66

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Solution

The fourth proportional to 12,147.17, 18,211.03 and 5,577.66 is: 8,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.17 : 18,211.03 = 5,577.66 : x
  2. Step 2: Convert to fraction form
    12,147.17/18,211.03 = 5,577.66/x
  3. Step 3: Cross multiply
    12,147.17x = 18,211.03 × 5,577.66
  4. Step 4: Simplify right side
    12,147.17x = 101,574,919.65
  5. Step 5: Solve for x
    x = 101,574,919.65/12,147.17
  6. Step 6: Final answer
    x = 8,362.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.