Home / 13,929.01-20,899.67-5,625.25

Finding the Fourth Proportional to 13,929.01, 20,899.67 and 5,625.25

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Solution

The fourth proportional to 13,929.01, 20,899.67 and 5,625.25 is: 8,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.01 : 20,899.67 = 5,625.25 : x
  2. Step 2: Convert to fraction form
    13,929.01/20,899.67 = 5,625.25/x
  3. Step 3: Cross multiply
    13,929.01x = 20,899.67 × 5,625.25
  4. Step 4: Simplify right side
    13,929.01x = 117,565,868.67
  5. Step 5: Solve for x
    x = 117,565,868.67/13,929.01
  6. Step 6: Final answer
    x = 8,440.36

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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.