Home / 13,260.52-18,295.14-7,667.56

Finding the Fourth Proportional to 13,260.52, 18,295.14 and 7,667.56

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Solution

The fourth proportional to 13,260.52, 18,295.14 and 7,667.56 is: 10,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.52 : 18,295.14 = 7,667.56 : x
  2. Step 2: Convert to fraction form
    13,260.52/18,295.14 = 7,667.56/x
  3. Step 3: Cross multiply
    13,260.52x = 18,295.14 × 7,667.56
  4. Step 4: Simplify right side
    13,260.52x = 140,279,083.66
  5. Step 5: Solve for x
    x = 140,279,083.66/13,260.52
  6. Step 6: Final answer
    x = 10,578.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.