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Finding the Fourth Proportional to 6,888.28, 9,502.64 and 4,995.70

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Solution

The fourth proportional to 6,888.28, 9,502.64 and 4,995.70 is: 6,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.28 : 9,502.64 = 4,995.70 : x
  2. Step 2: Convert to fraction form
    6,888.28/9,502.64 = 4,995.70/x
  3. Step 3: Cross multiply
    6,888.28x = 9,502.64 × 4,995.70
  4. Step 4: Simplify right side
    6,888.28x = 47,472,338.65
  5. Step 5: Solve for x
    x = 47,472,338.65/6,888.28
  6. Step 6: Final answer
    x = 6,891.76

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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.