Home / 14,090.40-21,135.60-5,764.95

Finding the Fourth Proportional to 14,090.40, 21,135.60 and 5,764.95

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Solution

The fourth proportional to 14,090.40, 21,135.60 and 5,764.95 is: 8,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.40 : 21,135.60 = 5,764.95 : x
  2. Step 2: Convert to fraction form
    14,090.40/21,135.60 = 5,764.95/x
  3. Step 3: Cross multiply
    14,090.40x = 21,135.60 × 5,764.95
  4. Step 4: Simplify right side
    14,090.40x = 121,845,677.22
  5. Step 5: Solve for x
    x = 121,845,677.22/14,090.40
  6. Step 6: Final answer
    x = 8,647.43

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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.