Home / 13,260.78-18,299.60-7,292.46

Finding the Fourth Proportional to 13,260.78, 18,299.60 and 7,292.46

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Solution

The fourth proportional to 13,260.78, 18,299.60 and 7,292.46 is: 10,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.78 : 18,299.60 = 7,292.46 : x
  2. Step 2: Convert to fraction form
    13,260.78/18,299.60 = 7,292.46/x
  3. Step 3: Cross multiply
    13,260.78x = 18,299.60 × 7,292.46
  4. Step 4: Simplify right side
    13,260.78x = 133,449,101.02
  5. Step 5: Solve for x
    x = 133,449,101.02/13,260.78
  6. Step 6: Final answer
    x = 10,063.44

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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.