Home / 7,865.69-10,841.55-6,747.89

Finding the Fourth Proportional to 7,865.69, 10,841.55 and 6,747.89

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Solution

The fourth proportional to 7,865.69, 10,841.55 and 6,747.89 is: 9,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.69 : 10,841.55 = 6,747.89 : x
  2. Step 2: Convert to fraction form
    7,865.69/10,841.55 = 6,747.89/x
  3. Step 3: Cross multiply
    7,865.69x = 10,841.55 × 6,747.89
  4. Step 4: Simplify right side
    7,865.69x = 73,157,586.83
  5. Step 5: Solve for x
    x = 73,157,586.83/7,865.69
  6. Step 6: Final answer
    x = 9,300.85

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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.