Home / 8,752.80-13,120.83-2,905.32

Finding the Fourth Proportional to 8,752.80, 13,120.83 and 2,905.32

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Solution

The fourth proportional to 8,752.80, 13,120.83 and 2,905.32 is: 4,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.80 : 13,120.83 = 2,905.32 : x
  2. Step 2: Convert to fraction form
    8,752.80/13,120.83 = 2,905.32/x
  3. Step 3: Cross multiply
    8,752.80x = 13,120.83 × 2,905.32
  4. Step 4: Simplify right side
    8,752.80x = 38,120,209.82
  5. Step 5: Solve for x
    x = 38,120,209.82/8,752.80
  6. Step 6: Final answer
    x = 4,355.20

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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.