Home / 7,186.70-10,716.58-6,312.78

Finding the Fourth Proportional to 7,186.70, 10,716.58 and 6,312.78

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Solution

The fourth proportional to 7,186.70, 10,716.58 and 6,312.78 is: 9,413.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.70 : 10,716.58 = 6,312.78 : x
  2. Step 2: Convert to fraction form
    7,186.70/10,716.58 = 6,312.78/x
  3. Step 3: Cross multiply
    7,186.70x = 10,716.58 × 6,312.78
  4. Step 4: Simplify right side
    7,186.70x = 67,651,411.89
  5. Step 5: Solve for x
    x = 67,651,411.89/7,186.70
  6. Step 6: Final answer
    x = 9,413.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.