Home / 12,214.98-18,219.09-11,845.74

Finding the Fourth Proportional to 12,214.98, 18,219.09 and 11,845.74

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Solution

The fourth proportional to 12,214.98, 18,219.09 and 11,845.74 is: 17,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.98 : 18,219.09 = 11,845.74 : x
  2. Step 2: Convert to fraction form
    12,214.98/18,219.09 = 11,845.74/x
  3. Step 3: Cross multiply
    12,214.98x = 18,219.09 × 11,845.74
  4. Step 4: Simplify right side
    12,214.98x = 215,818,603.18
  5. Step 5: Solve for x
    x = 215,818,603.18/12,214.98
  6. Step 6: Final answer
    x = 17,668.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.