Home / 12,430.18-18,631.74-6,194.80

Finding the Fourth Proportional to 12,430.18, 18,631.74 and 6,194.80

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Solution

The fourth proportional to 12,430.18, 18,631.74 and 6,194.80 is: 9,285.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.18 : 18,631.74 = 6,194.80 : x
  2. Step 2: Convert to fraction form
    12,430.18/18,631.74 = 6,194.80/x
  3. Step 3: Cross multiply
    12,430.18x = 18,631.74 × 6,194.80
  4. Step 4: Simplify right side
    12,430.18x = 115,419,902.95
  5. Step 5: Solve for x
    x = 115,419,902.95/12,430.18
  6. Step 6: Final answer
    x = 9,285.46

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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.