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Finding the Fourth Proportional to 8,688.77, 13,033.16 and 2,448.78

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Solution

The fourth proportional to 8,688.77, 13,033.16 and 2,448.78 is: 3,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.77 : 13,033.16 = 2,448.78 : x
  2. Step 2: Convert to fraction form
    8,688.77/13,033.16 = 2,448.78/x
  3. Step 3: Cross multiply
    8,688.77x = 13,033.16 × 2,448.78
  4. Step 4: Simplify right side
    8,688.77x = 31,915,341.54
  5. Step 5: Solve for x
    x = 31,915,341.54/8,688.77
  6. Step 6: Final answer
    x = 3,673.17

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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.