Home / 13,402.08-20,083.56-6,468.48

Finding the Fourth Proportional to 13,402.08, 20,083.56 and 6,468.48

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Solution

The fourth proportional to 13,402.08, 20,083.56 and 6,468.48 is: 9,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.08 : 20,083.56 = 6,468.48 : x
  2. Step 2: Convert to fraction form
    13,402.08/20,083.56 = 6,468.48/x
  3. Step 3: Cross multiply
    13,402.08x = 20,083.56 × 6,468.48
  4. Step 4: Simplify right side
    13,402.08x = 129,910,106.19
  5. Step 5: Solve for x
    x = 129,910,106.19/13,402.08
  6. Step 6: Final answer
    x = 9,693.28

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1.5x scale

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.