Home / 7,718.12-11,577.14-1,874.70

Finding the Fourth Proportional to 7,718.12, 11,577.14 and 1,874.70

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Solution

The fourth proportional to 7,718.12, 11,577.14 and 1,874.70 is: 2,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.12 : 11,577.14 = 1,874.70 : x
  2. Step 2: Convert to fraction form
    7,718.12/11,577.14 = 1,874.70/x
  3. Step 3: Cross multiply
    7,718.12x = 11,577.14 × 1,874.70
  4. Step 4: Simplify right side
    7,718.12x = 21,703,664.36
  5. Step 5: Solve for x
    x = 21,703,664.36/7,718.12
  6. Step 6: Final answer
    x = 2,812.04

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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.