Home / 11,411.08-15,747.32-6,375.51

Finding the Fourth Proportional to 11,411.08, 15,747.32 and 6,375.51

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Solution

The fourth proportional to 11,411.08, 15,747.32 and 6,375.51 is: 8,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.08 : 15,747.32 = 6,375.51 : x
  2. Step 2: Convert to fraction form
    11,411.08/15,747.32 = 6,375.51/x
  3. Step 3: Cross multiply
    11,411.08x = 15,747.32 × 6,375.51
  4. Step 4: Simplify right side
    11,411.08x = 100,397,212.07
  5. Step 5: Solve for x
    x = 100,397,212.07/11,411.08
  6. Step 6: Final answer
    x = 8,798.22

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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.