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Finding the Fourth Proportional to 6,868.92, 9,479.34 and 4,386.36

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Solution

The fourth proportional to 6,868.92, 9,479.34 and 4,386.36 is: 6,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.92 : 9,479.34 = 4,386.36 : x
  2. Step 2: Convert to fraction form
    6,868.92/9,479.34 = 4,386.36/x
  3. Step 3: Cross multiply
    6,868.92x = 9,479.34 × 4,386.36
  4. Step 4: Simplify right side
    6,868.92x = 41,579,797.80
  5. Step 5: Solve for x
    x = 41,579,797.80/6,868.92
  6. Step 6: Final answer
    x = 6,053.32

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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.