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Finding the Fourth Proportional to 6,368.98, 8,789.97 and 4,011.07

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Solution

The fourth proportional to 6,368.98, 8,789.97 and 4,011.07 is: 5,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.98 : 8,789.97 = 4,011.07 : x
  2. Step 2: Convert to fraction form
    6,368.98/8,789.97 = 4,011.07/x
  3. Step 3: Cross multiply
    6,368.98x = 8,789.97 × 4,011.07
  4. Step 4: Simplify right side
    6,368.98x = 35,257,184.97
  5. Step 5: Solve for x
    x = 35,257,184.97/6,368.98
  6. Step 6: Final answer
    x = 5,535.77

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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.