Home / 12,290.88-18,430.56-4,494.24

Finding the Fourth Proportional to 12,290.88, 18,430.56 and 4,494.24

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Solution

The fourth proportional to 12,290.88, 18,430.56 and 4,494.24 is: 6,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.88 : 18,430.56 = 4,494.24 : x
  2. Step 2: Convert to fraction form
    12,290.88/18,430.56 = 4,494.24/x
  3. Step 3: Cross multiply
    12,290.88x = 18,430.56 × 4,494.24
  4. Step 4: Simplify right side
    12,290.88x = 82,831,359.97
  5. Step 5: Solve for x
    x = 82,831,359.97/12,290.88
  6. Step 6: Final answer
    x = 6,739.25

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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.