Home / 18,333.29-27,513.78-12,707.79

Finding the Fourth Proportional to 18,333.29, 27,513.78 and 12,707.79

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Solution

The fourth proportional to 18,333.29, 27,513.78 and 12,707.79 is: 19,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333.29 : 27,513.78 = 12,707.79 : x
  2. Step 2: Convert to fraction form
    18,333.29/27,513.78 = 12,707.79/x
  3. Step 3: Cross multiply
    18,333.29x = 27,513.78 × 12,707.79
  4. Step 4: Simplify right side
    18,333.29x = 349,639,187.52
  5. Step 5: Solve for x
    x = 349,639,187.52/18,333.29
  6. Step 6: Final answer
    x = 19,071.28

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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.