Home / 13,508.04-20,265.28-5,188.12

Finding the Fourth Proportional to 13,508.04, 20,265.28 and 5,188.12

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Solution

The fourth proportional to 13,508.04, 20,265.28 and 5,188.12 is: 7,783.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.04 : 20,265.28 = 5,188.12 : x
  2. Step 2: Convert to fraction form
    13,508.04/20,265.28 = 5,188.12/x
  3. Step 3: Cross multiply
    13,508.04x = 20,265.28 × 5,188.12
  4. Step 4: Simplify right side
    13,508.04x = 105,138,704.47
  5. Step 5: Solve for x
    x = 105,138,704.47/13,508.04
  6. Step 6: Final answer
    x = 7,783.42

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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.