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Finding the Fourth Proportional to 8,466.87, 12,712.74 and 8,317.37

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Solution

The fourth proportional to 8,466.87, 12,712.74 and 8,317.37 is: 12,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.87 : 12,712.74 = 8,317.37 : x
  2. Step 2: Convert to fraction form
    8,466.87/12,712.74 = 8,317.37/x
  3. Step 3: Cross multiply
    8,466.87x = 12,712.74 × 8,317.37
  4. Step 4: Simplify right side
    8,466.87x = 105,736,617.91
  5. Step 5: Solve for x
    x = 105,736,617.91/8,466.87
  6. Step 6: Final answer
    x = 12,488.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.