Home / 13,921-20,881.88-4,060.04

Finding the Fourth Proportional to 13,921, 20,881.88 and 4,060.04

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Solution

The fourth proportional to 13,921, 20,881.88 and 4,060.04 is: 6,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921 : 20,881.88 = 4,060.04 : x
  2. Step 2: Convert to fraction form
    13,921/20,881.88 = 4,060.04/x
  3. Step 3: Cross multiply
    13,921x = 20,881.88 × 4,060.04
  4. Step 4: Simplify right side
    13,921x = 84,781,268.08
  5. Step 5: Solve for x
    x = 84,781,268.08/13,921
  6. Step 6: Final answer
    x = 6,090.17

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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.