Home / 13,224.68-18,248.87-7,558.30

Finding the Fourth Proportional to 13,224.68, 18,248.87 and 7,558.30

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Solution

The fourth proportional to 13,224.68, 18,248.87 and 7,558.30 is: 10,429.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,224.68 : 18,248.87 = 7,558.30 : x
  2. Step 2: Convert to fraction form
    13,224.68/18,248.87 = 7,558.30/x
  3. Step 3: Cross multiply
    13,224.68x = 18,248.87 × 7,558.30
  4. Step 4: Simplify right side
    13,224.68x = 137,930,407.39
  5. Step 5: Solve for x
    x = 137,930,407.39/13,224.68
  6. Step 6: Final answer
    x = 10,429.78

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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.