Home / 12,195.84-18,293.76-3,430.76

Finding the Fourth Proportional to 12,195.84, 18,293.76 and 3,430.76

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Solution

The fourth proportional to 12,195.84, 18,293.76 and 3,430.76 is: 5,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.84 : 18,293.76 = 3,430.76 : x
  2. Step 2: Convert to fraction form
    12,195.84/18,293.76 = 3,430.76/x
  3. Step 3: Cross multiply
    12,195.84x = 18,293.76 × 3,430.76
  4. Step 4: Simplify right side
    12,195.84x = 62,761,408.59
  5. Step 5: Solve for x
    x = 62,761,408.59/12,195.84
  6. Step 6: Final answer
    x = 5,146.13

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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.