Home / 12,420.06-18,626.14-4,098.53

Finding the Fourth Proportional to 12,420.06, 18,626.14 and 4,098.53

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Solution

The fourth proportional to 12,420.06, 18,626.14 and 4,098.53 is: 6,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420.06 : 18,626.14 = 4,098.53 : x
  2. Step 2: Convert to fraction form
    12,420.06/18,626.14 = 4,098.53/x
  3. Step 3: Cross multiply
    12,420.06x = 18,626.14 × 4,098.53
  4. Step 4: Simplify right side
    12,420.06x = 76,339,679.95
  5. Step 5: Solve for x
    x = 76,339,679.95/12,420.06
  6. Step 6: Final answer
    x = 6,146.48

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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.