Home / 7,680.21-10,608.47-5,876.70

Finding the Fourth Proportional to 7,680.21, 10,608.47 and 5,876.70

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Solution

The fourth proportional to 7,680.21, 10,608.47 and 5,876.70 is: 8,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.21 : 10,608.47 = 5,876.70 : x
  2. Step 2: Convert to fraction form
    7,680.21/10,608.47 = 5,876.70/x
  3. Step 3: Cross multiply
    7,680.21x = 10,608.47 × 5,876.70
  4. Step 4: Simplify right side
    7,680.21x = 62,342,795.65
  5. Step 5: Solve for x
    x = 62,342,795.65/7,680.21
  6. Step 6: Final answer
    x = 8,117.33

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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.