Home / 11,205.26-15,446.88-7,837.61

Finding the Fourth Proportional to 11,205.26, 15,446.88 and 7,837.61

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Solution

The fourth proportional to 11,205.26, 15,446.88 and 7,837.61 is: 10,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.26 : 15,446.88 = 7,837.61 : x
  2. Step 2: Convert to fraction form
    11,205.26/15,446.88 = 7,837.61/x
  3. Step 3: Cross multiply
    11,205.26x = 15,446.88 × 7,837.61
  4. Step 4: Simplify right side
    11,205.26x = 121,066,621.16
  5. Step 5: Solve for x
    x = 121,066,621.16/11,205.26
  6. Step 6: Final answer
    x = 10,804.45

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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.