Home / 13,331.70-19,997.55-10,869.30

Finding the Fourth Proportional to 13,331.70, 19,997.55 and 10,869.30

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Solution

The fourth proportional to 13,331.70, 19,997.55 and 10,869.30 is: 16,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.70 : 19,997.55 = 10,869.30 : x
  2. Step 2: Convert to fraction form
    13,331.70/19,997.55 = 10,869.30/x
  3. Step 3: Cross multiply
    13,331.70x = 19,997.55 × 10,869.30
  4. Step 4: Simplify right side
    13,331.70x = 217,359,370.22
  5. Step 5: Solve for x
    x = 217,359,370.22/13,331.70
  6. Step 6: Final answer
    x = 16,303.95

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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.