Home / 13,808.39-20,697.17-5,486.18

Finding the Fourth Proportional to 13,808.39, 20,697.17 and 5,486.18

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Solution

The fourth proportional to 13,808.39, 20,697.17 and 5,486.18 is: 8,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.39 : 20,697.17 = 5,486.18 : x
  2. Step 2: Convert to fraction form
    13,808.39/20,697.17 = 5,486.18/x
  3. Step 3: Cross multiply
    13,808.39x = 20,697.17 × 5,486.18
  4. Step 4: Simplify right side
    13,808.39x = 113,548,269.19
  5. Step 5: Solve for x
    x = 113,548,269.19/13,808.39
  6. Step 6: Final answer
    x = 8,223.14

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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.