Home / 7,743.14-10,688.80-5,228.66

Finding the Fourth Proportional to 7,743.14, 10,688.80 and 5,228.66

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Solution

The fourth proportional to 7,743.14, 10,688.80 and 5,228.66 is: 7,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.14 : 10,688.80 = 5,228.66 : x
  2. Step 2: Convert to fraction form
    7,743.14/10,688.80 = 5,228.66/x
  3. Step 3: Cross multiply
    7,743.14x = 10,688.80 × 5,228.66
  4. Step 4: Simplify right side
    7,743.14x = 55,888,047.56
  5. Step 5: Solve for x
    x = 55,888,047.56/7,743.14
  6. Step 6: Final answer
    x = 7,217.75

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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.