Home / 11,115.26-15,333.27-6,637.58

Finding the Fourth Proportional to 11,115.26, 15,333.27 and 6,637.58

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Solution

The fourth proportional to 11,115.26, 15,333.27 and 6,637.58 is: 9,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.26 : 15,333.27 = 6,637.58 : x
  2. Step 2: Convert to fraction form
    11,115.26/15,333.27 = 6,637.58/x
  3. Step 3: Cross multiply
    11,115.26x = 15,333.27 × 6,637.58
  4. Step 4: Simplify right side
    11,115.26x = 101,775,806.29
  5. Step 5: Solve for x
    x = 101,775,806.29/11,115.26
  6. Step 6: Final answer
    x = 9,156.40

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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.