Home / 13,299.60-18,353.87-7,635.39

Finding the Fourth Proportional to 13,299.60, 18,353.87 and 7,635.39

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Solution

The fourth proportional to 13,299.60, 18,353.87 and 7,635.39 is: 10,537.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.60 : 18,353.87 = 7,635.39 : x
  2. Step 2: Convert to fraction form
    13,299.60/18,353.87 = 7,635.39/x
  3. Step 3: Cross multiply
    13,299.60x = 18,353.87 × 7,635.39
  4. Step 4: Simplify right side
    13,299.60x = 140,138,917.28
  5. Step 5: Solve for x
    x = 140,138,917.28/13,299.60
  6. Step 6: Final answer
    x = 10,537.08

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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.