Home / 9,119.15-13,681.16-3,275.81

Finding the Fourth Proportional to 9,119.15, 13,681.16 and 3,275.81

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Solution

The fourth proportional to 9,119.15, 13,681.16 and 3,275.81 is: 4,914.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.15 : 13,681.16 = 3,275.81 : x
  2. Step 2: Convert to fraction form
    9,119.15/13,681.16 = 3,275.81/x
  3. Step 3: Cross multiply
    9,119.15x = 13,681.16 × 3,275.81
  4. Step 4: Simplify right side
    9,119.15x = 44,816,795.95
  5. Step 5: Solve for x
    x = 44,816,795.95/9,119.15
  6. Step 6: Final answer
    x = 4,914.58

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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.