Home / 8,610.30-12,916.26-3,415.50

Finding the Fourth Proportional to 8,610.30, 12,916.26 and 3,415.50

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Solution

The fourth proportional to 8,610.30, 12,916.26 and 3,415.50 is: 5,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.30 : 12,916.26 = 3,415.50 : x
  2. Step 2: Convert to fraction form
    8,610.30/12,916.26 = 3,415.50/x
  3. Step 3: Cross multiply
    8,610.30x = 12,916.26 × 3,415.50
  4. Step 4: Simplify right side
    8,610.30x = 44,115,486.03
  5. Step 5: Solve for x
    x = 44,115,486.03/8,610.30
  6. Step 6: Final answer
    x = 5,123.57

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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.