Home / 13,003.45-19,518.65-8,009.39

Finding the Fourth Proportional to 13,003.45, 19,518.65 and 8,009.39

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Solution

The fourth proportional to 13,003.45, 19,518.65 and 8,009.39 is: 12,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.45 : 19,518.65 = 8,009.39 : x
  2. Step 2: Convert to fraction form
    13,003.45/19,518.65 = 8,009.39/x
  3. Step 3: Cross multiply
    13,003.45x = 19,518.65 × 8,009.39
  4. Step 4: Simplify right side
    13,003.45x = 156,332,480.12
  5. Step 5: Solve for x
    x = 156,332,480.12/13,003.45
  6. Step 6: Final answer
    x = 12,022.38

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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.