Home / 11,064.70-15,268.71-6,872.86

Finding the Fourth Proportional to 11,064.70, 15,268.71 and 6,872.86

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Solution

The fourth proportional to 11,064.70, 15,268.71 and 6,872.86 is: 9,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,064.70 : 15,268.71 = 6,872.86 : x
  2. Step 2: Convert to fraction form
    11,064.70/15,268.71 = 6,872.86/x
  3. Step 3: Cross multiply
    11,064.70x = 15,268.71 × 6,872.86
  4. Step 4: Simplify right side
    11,064.70x = 104,939,706.21
  5. Step 5: Solve for x
    x = 104,939,706.21/11,064.70
  6. Step 6: Final answer
    x = 9,484.19

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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.