Home / 12,214.70-18,309.26-5,645.18

Finding the Fourth Proportional to 12,214.70, 18,309.26 and 5,645.18

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Solution

The fourth proportional to 12,214.70, 18,309.26 and 5,645.18 is: 8,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.70 : 18,309.26 = 5,645.18 : x
  2. Step 2: Convert to fraction form
    12,214.70/18,309.26 = 5,645.18/x
  3. Step 3: Cross multiply
    12,214.70x = 18,309.26 × 5,645.18
  4. Step 4: Simplify right side
    12,214.70x = 103,359,068.37
  5. Step 5: Solve for x
    x = 103,359,068.37/12,214.70
  6. Step 6: Final answer
    x = 8,461.86

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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.