Home / 9,211.23-12,711.06-5,231.82

Finding the Fourth Proportional to 9,211.23, 12,711.06 and 5,231.82

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Solution

The fourth proportional to 9,211.23, 12,711.06 and 5,231.82 is: 7,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.23 : 12,711.06 = 5,231.82 : x
  2. Step 2: Convert to fraction form
    9,211.23/12,711.06 = 5,231.82/x
  3. Step 3: Cross multiply
    9,211.23x = 12,711.06 × 5,231.82
  4. Step 4: Simplify right side
    9,211.23x = 66,501,977.93
  5. Step 5: Solve for x
    x = 66,501,977.93/9,211.23
  6. Step 6: Final answer
    x = 7,219.66

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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.