Home / 11,536.07-15,920.01-6,431.90

Finding the Fourth Proportional to 11,536.07, 15,920.01 and 6,431.90

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Solution

The fourth proportional to 11,536.07, 15,920.01 and 6,431.90 is: 8,876.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,536.07 : 15,920.01 = 6,431.90 : x
  2. Step 2: Convert to fraction form
    11,536.07/15,920.01 = 6,431.90/x
  3. Step 3: Cross multiply
    11,536.07x = 15,920.01 × 6,431.90
  4. Step 4: Simplify right side
    11,536.07x = 102,395,832.72
  5. Step 5: Solve for x
    x = 102,395,832.72/11,536.07
  6. Step 6: Final answer
    x = 8,876.15

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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.