Home / 13,398.39-20,000.00-12,410.19

Finding the Fourth Proportional to 13,398.39, 20,000.00 and 12,410.19

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Solution

The fourth proportional to 13,398.39, 20,000.00 and 12,410.19 is: 18,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.39 : 20,000.00 = 12,410.19 : x
  2. Step 2: Convert to fraction form
    13,398.39/20,000.00 = 12,410.19/x
  3. Step 3: Cross multiply
    13,398.39x = 20,000.00 × 12,410.19
  4. Step 4: Simplify right side
    13,398.39x = 248,203,831.03
  5. Step 5: Solve for x
    x = 248,203,831.03/13,398.39
  6. Step 6: Final answer
    x = 18,524.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.