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Finding the Fourth Proportional to 8,363.49, 12,543.81 and 2,518.74

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Solution

The fourth proportional to 8,363.49, 12,543.81 and 2,518.74 is: 3,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.49 : 12,543.81 = 2,518.74 : x
  2. Step 2: Convert to fraction form
    8,363.49/12,543.81 = 2,518.74/x
  3. Step 3: Cross multiply
    8,363.49x = 12,543.81 × 2,518.74
  4. Step 4: Simplify right side
    8,363.49x = 31,594,533.28
  5. Step 5: Solve for x
    x = 31,594,533.28/8,363.49
  6. Step 6: Final answer
    x = 3,777.68

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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.