Home / 17,780.52-26,666.64-5,299.40

Finding the Fourth Proportional to 17,780.52, 26,666.64 and 5,299.40

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Solution

The fourth proportional to 17,780.52, 26,666.64 and 5,299.40 is: 7,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.52 : 26,666.64 = 5,299.40 : x
  2. Step 2: Convert to fraction form
    17,780.52/26,666.64 = 5,299.40/x
  3. Step 3: Cross multiply
    17,780.52x = 26,666.64 × 5,299.40
  4. Step 4: Simplify right side
    17,780.52x = 141,317,192.02
  5. Step 5: Solve for x
    x = 141,317,192.02/17,780.52
  6. Step 6: Final answer
    x = 7,947.87

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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.