Home / 13,385.26-20,078.05-6,365.95

Finding the Fourth Proportional to 13,385.26, 20,078.05 and 6,365.95

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Solution

The fourth proportional to 13,385.26, 20,078.05 and 6,365.95 is: 9,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.26 : 20,078.05 = 6,365.95 : x
  2. Step 2: Convert to fraction form
    13,385.26/20,078.05 = 6,365.95/x
  3. Step 3: Cross multiply
    13,385.26x = 20,078.05 × 6,365.95
  4. Step 4: Simplify right side
    13,385.26x = 127,815,928.51
  5. Step 5: Solve for x
    x = 127,815,928.51/13,385.26
  6. Step 6: Final answer
    x = 9,549.01

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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.