Home / 11,211.14-15,467.18-6,429.38

Finding the Fourth Proportional to 11,211.14, 15,467.18 and 6,429.38

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Solution

The fourth proportional to 11,211.14, 15,467.18 and 6,429.38 is: 8,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.14 : 15,467.18 = 6,429.38 : x
  2. Step 2: Convert to fraction form
    11,211.14/15,467.18 = 6,429.38/x
  3. Step 3: Cross multiply
    11,211.14x = 15,467.18 × 6,429.38
  4. Step 4: Simplify right side
    11,211.14x = 99,444,268.27
  5. Step 5: Solve for x
    x = 99,444,268.27/11,211.14
  6. Step 6: Final answer
    x = 8,870.13

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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.