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Finding the Fourth Proportional to 13,598.78, 20,379.04 and 10,813.10

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Solution

The fourth proportional to 13,598.78, 20,379.04 and 10,813.10 is: 16,204.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.78 : 20,379.04 = 10,813.10 : x
  2. Step 2: Convert to fraction form
    13,598.78/20,379.04 = 10,813.10/x
  3. Step 3: Cross multiply
    13,598.78x = 20,379.04 × 10,813.10
  4. Step 4: Simplify right side
    13,598.78x = 220,360,468.50
  5. Step 5: Solve for x
    x = 220,360,468.50/13,598.78
  6. Step 6: Final answer
    x = 16,204.44

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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.