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Finding the Fourth Proportional to 6,488.46, 8,943.56 and 5,069.67

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Solution

The fourth proportional to 6,488.46, 8,943.56 and 5,069.67 is: 6,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.46 : 8,943.56 = 5,069.67 : x
  2. Step 2: Convert to fraction form
    6,488.46/8,943.56 = 5,069.67/x
  3. Step 3: Cross multiply
    6,488.46x = 8,943.56 × 5,069.67
  4. Step 4: Simplify right side
    6,488.46x = 45,340,872.48
  5. Step 5: Solve for x
    x = 45,340,872.48/6,488.46
  6. Step 6: Final answer
    x = 6,987.93

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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.