Home / 12,110.25-18,166.35-3,345.15

Finding the Fourth Proportional to 12,110.25, 18,166.35 and 3,345.15

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Solution

The fourth proportional to 12,110.25, 18,166.35 and 3,345.15 is: 5,017.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.25 : 18,166.35 = 3,345.15 : x
  2. Step 2: Convert to fraction form
    12,110.25/18,166.35 = 3,345.15/x
  3. Step 3: Cross multiply
    12,110.25x = 18,166.35 × 3,345.15
  4. Step 4: Simplify right side
    12,110.25x = 60,769,165.70
  5. Step 5: Solve for x
    x = 60,769,165.70/12,110.25
  6. Step 6: Final answer
    x = 5,017.99

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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.