Home / 7,716.58-10,639.17-6,298.81

Finding the Fourth Proportional to 7,716.58, 10,639.17 and 6,298.81

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Solution

The fourth proportional to 7,716.58, 10,639.17 and 6,298.81 is: 8,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.58 : 10,639.17 = 6,298.81 : x
  2. Step 2: Convert to fraction form
    7,716.58/10,639.17 = 6,298.81/x
  3. Step 3: Cross multiply
    7,716.58x = 10,639.17 × 6,298.81
  4. Step 4: Simplify right side
    7,716.58x = 67,014,083.79
  5. Step 5: Solve for x
    x = 67,014,083.79/7,716.58
  6. Step 6: Final answer
    x = 8,684.43

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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.