Home / 8,360.40-12,543.20-3,430.44

Finding the Fourth Proportional to 8,360.40, 12,543.20 and 3,430.44

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Solution

The fourth proportional to 8,360.40, 12,543.20 and 3,430.44 is: 5,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.40 : 12,543.20 = 3,430.44 : x
  2. Step 2: Convert to fraction form
    8,360.40/12,543.20 = 3,430.44/x
  3. Step 3: Cross multiply
    8,360.40x = 12,543.20 × 3,430.44
  4. Step 4: Simplify right side
    8,360.40x = 43,028,695.01
  5. Step 5: Solve for x
    x = 43,028,695.01/8,360.40
  6. Step 6: Final answer
    x = 5,146.73

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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.