Home / 15,911.08-23,855.10-8,113.96

Finding the Fourth Proportional to 15,911.08, 23,855.10 and 8,113.96

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Solution

The fourth proportional to 15,911.08, 23,855.10 and 8,113.96 is: 12,165.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.08 : 23,855.10 = 8,113.96 : x
  2. Step 2: Convert to fraction form
    15,911.08/23,855.10 = 8,113.96/x
  3. Step 3: Cross multiply
    15,911.08x = 23,855.10 × 8,113.96
  4. Step 4: Simplify right side
    15,911.08x = 193,559,327.20
  5. Step 5: Solve for x
    x = 193,559,327.20/15,911.08
  6. Step 6: Final answer
    x = 12,165.07

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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.