Home / 12,346.11-18,520.11-5,326.29

Finding the Fourth Proportional to 12,346.11, 18,520.11 and 5,326.29

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Solution

The fourth proportional to 12,346.11, 18,520.11 and 5,326.29 is: 7,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.11 : 18,520.11 = 5,326.29 : x
  2. Step 2: Convert to fraction form
    12,346.11/18,520.11 = 5,326.29/x
  3. Step 3: Cross multiply
    12,346.11x = 18,520.11 × 5,326.29
  4. Step 4: Simplify right side
    12,346.11x = 98,643,476.69
  5. Step 5: Solve for x
    x = 98,643,476.69/12,346.11
  6. Step 6: Final answer
    x = 7,989.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.