Home / 9,186.51-12,680.26-5,210.25

Finding the Fourth Proportional to 9,186.51, 12,680.26 and 5,210.25

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Solution

The fourth proportional to 9,186.51, 12,680.26 and 5,210.25 is: 7,191.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.51 : 12,680.26 = 5,210.25 : x
  2. Step 2: Convert to fraction form
    9,186.51/12,680.26 = 5,210.25/x
  3. Step 3: Cross multiply
    9,186.51x = 12,680.26 × 5,210.25
  4. Step 4: Simplify right side
    9,186.51x = 66,067,324.67
  5. Step 5: Solve for x
    x = 66,067,324.67/9,186.51
  6. Step 6: Final answer
    x = 7,191.78

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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.