Home / 13,443.68-18,552.60-7,475.60

Finding the Fourth Proportional to 13,443.68, 18,552.60 and 7,475.60

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Solution

The fourth proportional to 13,443.68, 18,552.60 and 7,475.60 is: 10,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.68 : 18,552.60 = 7,475.60 : x
  2. Step 2: Convert to fraction form
    13,443.68/18,552.60 = 7,475.60/x
  3. Step 3: Cross multiply
    13,443.68x = 18,552.60 × 7,475.60
  4. Step 4: Simplify right side
    13,443.68x = 138,691,816.56
  5. Step 5: Solve for x
    x = 138,691,816.56/13,443.68
  6. Step 6: Final answer
    x = 10,316.51

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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.