Home / 13,331.70-18,398.58-7,363.34

Finding the Fourth Proportional to 13,331.70, 18,398.58 and 7,363.34

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Solution

The fourth proportional to 13,331.70, 18,398.58 and 7,363.34 is: 10,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.70 : 18,398.58 = 7,363.34 : x
  2. Step 2: Convert to fraction form
    13,331.70/18,398.58 = 7,363.34/x
  3. Step 3: Cross multiply
    13,331.70x = 18,398.58 × 7,363.34
  4. Step 4: Simplify right side
    13,331.70x = 135,475,000.06
  5. Step 5: Solve for x
    x = 135,475,000.06/13,331.70
  6. Step 6: Final answer
    x = 10,161.87

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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.