Home / 13,402.36-20,105.10-5,088.60

Finding the Fourth Proportional to 13,402.36, 20,105.10 and 5,088.60

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Solution

The fourth proportional to 13,402.36, 20,105.10 and 5,088.60 is: 7,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.36 : 20,105.10 = 5,088.60 : x
  2. Step 2: Convert to fraction form
    13,402.36/20,105.10 = 5,088.60/x
  3. Step 3: Cross multiply
    13,402.36x = 20,105.10 × 5,088.60
  4. Step 4: Simplify right side
    13,402.36x = 102,306,811.86
  5. Step 5: Solve for x
    x = 102,306,811.86/13,402.36
  6. Step 6: Final answer
    x = 7,633.49

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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.