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Finding the Fourth Proportional to 8,752.45, 13,130.63 and 3,205.68

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Solution

The fourth proportional to 8,752.45, 13,130.63 and 3,205.68 is: 4,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.45 : 13,130.63 = 3,205.68 : x
  2. Step 2: Convert to fraction form
    8,752.45/13,130.63 = 3,205.68/x
  3. Step 3: Cross multiply
    8,752.45x = 13,130.63 × 3,205.68
  4. Step 4: Simplify right side
    8,752.45x = 42,092,597.98
  5. Step 5: Solve for x
    x = 42,092,597.98/8,752.45
  6. Step 6: Final answer
    x = 4,809.24

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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.