Home / 13,600.47-18,765.45-7,931.82

Finding the Fourth Proportional to 13,600.47, 18,765.45 and 7,931.82

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Solution

The fourth proportional to 13,600.47, 18,765.45 and 7,931.82 is: 10,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.47 : 18,765.45 = 7,931.82 : x
  2. Step 2: Convert to fraction form
    13,600.47/18,765.45 = 7,931.82/x
  3. Step 3: Cross multiply
    13,600.47x = 18,765.45 × 7,931.82
  4. Step 4: Simplify right side
    13,600.47x = 148,844,171.62
  5. Step 5: Solve for x
    x = 148,844,171.62/13,600.47
  6. Step 6: Final answer
    x = 10,944.05

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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.