Home / 12,057.39-18,113.90-11,559.17

Finding the Fourth Proportional to 12,057.39, 18,113.90 and 11,559.17

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Solution

The fourth proportional to 12,057.39, 18,113.90 and 11,559.17 is: 17,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.39 : 18,113.90 = 11,559.17 : x
  2. Step 2: Convert to fraction form
    12,057.39/18,113.90 = 11,559.17/x
  3. Step 3: Cross multiply
    12,057.39x = 18,113.90 × 11,559.17
  4. Step 4: Simplify right side
    12,057.39x = 209,381,636.95
  5. Step 5: Solve for x
    x = 209,381,636.95/12,057.39
  6. Step 6: Final answer
    x = 17,365.42

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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.