Home / 17,500.78-26,260.40-7,628.53

Finding the Fourth Proportional to 17,500.78, 26,260.40 and 7,628.53

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Solution

The fourth proportional to 17,500.78, 26,260.40 and 7,628.53 is: 11,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,500.78 : 26,260.40 = 7,628.53 : x
  2. Step 2: Convert to fraction form
    17,500.78/26,260.40 = 7,628.53/x
  3. Step 3: Cross multiply
    17,500.78x = 26,260.40 × 7,628.53
  4. Step 4: Simplify right side
    17,500.78x = 200,328,251.87
  5. Step 5: Solve for x
    x = 200,328,251.87/17,500.78
  6. Step 6: Final answer
    x = 11,446.82

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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.