Home / 7,766.38-10,718.61-4,622.57

Finding the Fourth Proportional to 7,766.38, 10,718.61 and 4,622.57

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Solution

The fourth proportional to 7,766.38, 10,718.61 and 4,622.57 is: 6,379.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.38 : 10,718.61 = 4,622.57 : x
  2. Step 2: Convert to fraction form
    7,766.38/10,718.61 = 4,622.57/x
  3. Step 3: Cross multiply
    7,766.38x = 10,718.61 × 4,622.57
  4. Step 4: Simplify right side
    7,766.38x = 49,547,471.43
  5. Step 5: Solve for x
    x = 49,547,471.43/7,766.38
  6. Step 6: Final answer
    x = 6,379.74

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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.