Home / 13,927.20-20,909.34-8,088

Finding the Fourth Proportional to 13,927.20, 20,909.34 and 8,088

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Solution

The fourth proportional to 13,927.20, 20,909.34 and 8,088 is: 12,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.20 : 20,909.34 = 8,088 : x
  2. Step 2: Convert to fraction form
    13,927.20/20,909.34 = 8,088/x
  3. Step 3: Cross multiply
    13,927.20x = 20,909.34 × 8,088
  4. Step 4: Simplify right side
    13,927.20x = 169,114,741.92
  5. Step 5: Solve for x
    x = 169,114,741.92/13,927.20
  6. Step 6: Final answer
    x = 12,142.77

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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.