Home / 7,830.62-10,804.92-5,176.66

Finding the Fourth Proportional to 7,830.62, 10,804.92 and 5,176.66

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Solution

The fourth proportional to 7,830.62, 10,804.92 and 5,176.66 is: 7,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.62 : 10,804.92 = 5,176.66 : x
  2. Step 2: Convert to fraction form
    7,830.62/10,804.92 = 5,176.66/x
  3. Step 3: Cross multiply
    7,830.62x = 10,804.92 × 5,176.66
  4. Step 4: Simplify right side
    7,830.62x = 55,933,397.17
  5. Step 5: Solve for x
    x = 55,933,397.17/7,830.62
  6. Step 6: Final answer
    x = 7,142.91

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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.