Home / 13,931.96-20,892.98-4,068.68

Finding the Fourth Proportional to 13,931.96, 20,892.98 and 4,068.68

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Solution

The fourth proportional to 13,931.96, 20,892.98 and 4,068.68 is: 6,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.96 : 20,892.98 = 4,068.68 : x
  2. Step 2: Convert to fraction form
    13,931.96/20,892.98 = 4,068.68/x
  3. Step 3: Cross multiply
    13,931.96x = 20,892.98 × 4,068.68
  4. Step 4: Simplify right side
    13,931.96x = 85,006,849.87
  5. Step 5: Solve for x
    x = 85,006,849.87/13,931.96
  6. Step 6: Final answer
    x = 6,101.57

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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.