Home / 13,355.34-19,945.88-11,359.70

Finding the Fourth Proportional to 13,355.34, 19,945.88 and 11,359.70

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Solution

The fourth proportional to 13,355.34, 19,945.88 and 11,359.70 is: 16,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.34 : 19,945.88 = 11,359.70 : x
  2. Step 2: Convert to fraction form
    13,355.34/19,945.88 = 11,359.70/x
  3. Step 3: Cross multiply
    13,355.34x = 19,945.88 × 11,359.70
  4. Step 4: Simplify right side
    13,355.34x = 226,579,213.04
  5. Step 5: Solve for x
    x = 226,579,213.04/13,355.34
  6. Step 6: Final answer
    x = 16,965.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.