Home / 11,402.07-15,738.62-6,686.25

Finding the Fourth Proportional to 11,402.07, 15,738.62 and 6,686.25

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Solution

The fourth proportional to 11,402.07, 15,738.62 and 6,686.25 is: 9,229.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.07 : 15,738.62 = 6,686.25 : x
  2. Step 2: Convert to fraction form
    11,402.07/15,738.62 = 6,686.25/x
  3. Step 3: Cross multiply
    11,402.07x = 15,738.62 × 6,686.25
  4. Step 4: Simplify right side
    11,402.07x = 105,232,314.54
  5. Step 5: Solve for x
    x = 105,232,314.54/11,402.07
  6. Step 6: Final answer
    x = 9,229.23

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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.