Home / 18,258.59-27,399.22-11,689.49

Finding the Fourth Proportional to 18,258.59, 27,399.22 and 11,689.49

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Solution

The fourth proportional to 18,258.59, 27,399.22 and 11,689.49 is: 17,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.59 : 27,399.22 = 11,689.49 : x
  2. Step 2: Convert to fraction form
    18,258.59/27,399.22 = 11,689.49/x
  3. Step 3: Cross multiply
    18,258.59x = 27,399.22 × 11,689.49
  4. Step 4: Simplify right side
    18,258.59x = 320,282,741.98
  5. Step 5: Solve for x
    x = 320,282,741.98/18,258.59
  6. Step 6: Final answer
    x = 17,541.49

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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.