Home / 15,129.11-22,679.70-8,114.01

Finding the Fourth Proportional to 15,129.11, 22,679.70 and 8,114.01

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Solution

The fourth proportional to 15,129.11, 22,679.70 and 8,114.01 is: 12,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.11 : 22,679.70 = 8,114.01 : x
  2. Step 2: Convert to fraction form
    15,129.11/22,679.70 = 8,114.01/x
  3. Step 3: Cross multiply
    15,129.11x = 22,679.70 × 8,114.01
  4. Step 4: Simplify right side
    15,129.11x = 184,023,197.12
  5. Step 5: Solve for x
    x = 184,023,197.12/15,129.11
  6. Step 6: Final answer
    x = 12,163.52

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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.