Home / 8,355.32-12,533.20-2,808.76

Finding the Fourth Proportional to 8,355.32, 12,533.20 and 2,808.76

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Solution

The fourth proportional to 8,355.32, 12,533.20 and 2,808.76 is: 4,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.32 : 12,533.20 = 2,808.76 : x
  2. Step 2: Convert to fraction form
    8,355.32/12,533.20 = 2,808.76/x
  3. Step 3: Cross multiply
    8,355.32x = 12,533.20 × 2,808.76
  4. Step 4: Simplify right side
    8,355.32x = 35,202,750.83
  5. Step 5: Solve for x
    x = 35,202,750.83/8,355.32
  6. Step 6: Final answer
    x = 4,213.21

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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.