Home / 13,508.61-20,262.86-3,648.90

Finding the Fourth Proportional to 13,508.61, 20,262.86 and 3,648.90

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Solution

The fourth proportional to 13,508.61, 20,262.86 and 3,648.90 is: 5,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.61 : 20,262.86 = 3,648.90 : x
  2. Step 2: Convert to fraction form
    13,508.61/20,262.86 = 3,648.90/x
  3. Step 3: Cross multiply
    13,508.61x = 20,262.86 × 3,648.90
  4. Step 4: Simplify right side
    13,508.61x = 73,937,131.61
  5. Step 5: Solve for x
    x = 73,937,131.61/13,508.61
  6. Step 6: Final answer
    x = 5,473.33

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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.