Home / 9,121.12-13,677.01-4,186.51

Finding the Fourth Proportional to 9,121.12, 13,677.01 and 4,186.51

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Solution

The fourth proportional to 9,121.12, 13,677.01 and 4,186.51 is: 6,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.12 : 13,677.01 = 4,186.51 : x
  2. Step 2: Convert to fraction form
    9,121.12/13,677.01 = 4,186.51/x
  3. Step 3: Cross multiply
    9,121.12x = 13,677.01 × 4,186.51
  4. Step 4: Simplify right side
    9,121.12x = 57,258,894.48
  5. Step 5: Solve for x
    x = 57,258,894.48/9,121.12
  6. Step 6: Final answer
    x = 6,277.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.