Home / 13,303.35-18,360.81-8,001.09

Finding the Fourth Proportional to 13,303.35, 18,360.81 and 8,001.09

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Solution

The fourth proportional to 13,303.35, 18,360.81 and 8,001.09 is: 11,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.35 : 18,360.81 = 8,001.09 : x
  2. Step 2: Convert to fraction form
    13,303.35/18,360.81 = 8,001.09/x
  3. Step 3: Cross multiply
    13,303.35x = 18,360.81 × 8,001.09
  4. Step 4: Simplify right side
    13,303.35x = 146,906,493.28
  5. Step 5: Solve for x
    x = 146,906,493.28/13,303.35
  6. Step 6: Final answer
    x = 11,042.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.