Home / 8,670.89-13,003.25-3,122.74

Finding the Fourth Proportional to 8,670.89, 13,003.25 and 3,122.74

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Solution

The fourth proportional to 8,670.89, 13,003.25 and 3,122.74 is: 4,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.89 : 13,003.25 = 3,122.74 : x
  2. Step 2: Convert to fraction form
    8,670.89/13,003.25 = 3,122.74/x
  3. Step 3: Cross multiply
    8,670.89x = 13,003.25 × 3,122.74
  4. Step 4: Simplify right side
    8,670.89x = 40,605,744.20
  5. Step 5: Solve for x
    x = 40,605,744.20/8,670.89
  6. Step 6: Final answer
    x = 4,683.00

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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.