Home / 8,188.87-12,285.06-2,642.53

Finding the Fourth Proportional to 8,188.87, 12,285.06 and 2,642.53

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Solution

The fourth proportional to 8,188.87, 12,285.06 and 2,642.53 is: 3,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.87 : 12,285.06 = 2,642.53 : x
  2. Step 2: Convert to fraction form
    8,188.87/12,285.06 = 2,642.53/x
  3. Step 3: Cross multiply
    8,188.87x = 12,285.06 × 2,642.53
  4. Step 4: Simplify right side
    8,188.87x = 32,463,639.60
  5. Step 5: Solve for x
    x = 32,463,639.60/8,188.87
  6. Step 6: Final answer
    x = 3,964.36

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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.