Home / 13,353.12-20,003.68-8,722.08

Finding the Fourth Proportional to 13,353.12, 20,003.68 and 8,722.08

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Solution

The fourth proportional to 13,353.12, 20,003.68 and 8,722.08 is: 13,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.12 : 20,003.68 = 8,722.08 : x
  2. Step 2: Convert to fraction form
    13,353.12/20,003.68 = 8,722.08/x
  3. Step 3: Cross multiply
    13,353.12x = 20,003.68 × 8,722.08
  4. Step 4: Simplify right side
    13,353.12x = 174,473,697.25
  5. Step 5: Solve for x
    x = 174,473,697.25/13,353.12
  6. Step 6: Final answer
    x = 13,066.14

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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.