Home / 13,269.83-19,908.38-10,505.70

Finding the Fourth Proportional to 13,269.83, 19,908.38 and 10,505.70

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Solution

The fourth proportional to 13,269.83, 19,908.38 and 10,505.70 is: 15,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.83 : 19,908.38 = 10,505.70 : x
  2. Step 2: Convert to fraction form
    13,269.83/19,908.38 = 10,505.70/x
  3. Step 3: Cross multiply
    13,269.83x = 19,908.38 × 10,505.70
  4. Step 4: Simplify right side
    13,269.83x = 209,151,494.03
  5. Step 5: Solve for x
    x = 209,151,494.03/13,269.83
  6. Step 6: Final answer
    x = 15,761.44

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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.