Home / 7,716.95-10,639.44-6,299.18

Finding the Fourth Proportional to 7,716.95, 10,639.44 and 6,299.18

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Solution

The fourth proportional to 7,716.95, 10,639.44 and 6,299.18 is: 8,684.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.95 : 10,639.44 = 6,299.18 : x
  2. Step 2: Convert to fraction form
    7,716.95/10,639.44 = 6,299.18/x
  3. Step 3: Cross multiply
    7,716.95x = 10,639.44 × 6,299.18
  4. Step 4: Simplify right side
    7,716.95x = 67,019,694.46
  5. Step 5: Solve for x
    x = 67,019,694.46/7,716.95
  6. Step 6: Final answer
    x = 8,684.74

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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.