Home / 13,663.20-20,493.72-4,897.20

Finding the Fourth Proportional to 13,663.20, 20,493.72 and 4,897.20

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Solution

The fourth proportional to 13,663.20, 20,493.72 and 4,897.20 is: 7,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.20 : 20,493.72 = 4,897.20 : x
  2. Step 2: Convert to fraction form
    13,663.20/20,493.72 = 4,897.20/x
  3. Step 3: Cross multiply
    13,663.20x = 20,493.72 × 4,897.20
  4. Step 4: Simplify right side
    13,663.20x = 100,361,845.58
  5. Step 5: Solve for x
    x = 100,361,845.58/13,663.20
  6. Step 6: Final answer
    x = 7,345.41

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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.