Home / 8,353.58-12,531.21-3,090

Finding the Fourth Proportional to 8,353.58, 12,531.21 and 3,090

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Solution

The fourth proportional to 8,353.58, 12,531.21 and 3,090 is: 4,635.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.58 : 12,531.21 = 3,090 : x
  2. Step 2: Convert to fraction form
    8,353.58/12,531.21 = 3,090/x
  3. Step 3: Cross multiply
    8,353.58x = 12,531.21 × 3,090
  4. Step 4: Simplify right side
    8,353.58x = 38,721,438.90
  5. Step 5: Solve for x
    x = 38,721,438.90/8,353.58
  6. Step 6: Final answer
    x = 4,635.31

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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.