Home / 8,430.44-12,642.38-3,162.58

Finding the Fourth Proportional to 8,430.44, 12,642.38 and 3,162.58

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Solution

The fourth proportional to 8,430.44, 12,642.38 and 3,162.58 is: 4,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.44 : 12,642.38 = 3,162.58 : x
  2. Step 2: Convert to fraction form
    8,430.44/12,642.38 = 3,162.58/x
  3. Step 3: Cross multiply
    8,430.44x = 12,642.38 × 3,162.58
  4. Step 4: Simplify right side
    8,430.44x = 39,982,490.72
  5. Step 5: Solve for x
    x = 39,982,490.72/8,430.44
  6. Step 6: Final answer
    x = 4,742.64

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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.