Home / 12,155.68-18,232.08-3,835.36

Finding the Fourth Proportional to 12,155.68, 18,232.08 and 3,835.36

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Solution

The fourth proportional to 12,155.68, 18,232.08 and 3,835.36 is: 5,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.68 : 18,232.08 = 3,835.36 : x
  2. Step 2: Convert to fraction form
    12,155.68/18,232.08 = 3,835.36/x
  3. Step 3: Cross multiply
    12,155.68x = 18,232.08 × 3,835.36
  4. Step 4: Simplify right side
    12,155.68x = 69,926,590.35
  5. Step 5: Solve for x
    x = 69,926,590.35/12,155.68
  6. Step 6: Final answer
    x = 5,752.59

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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.