Home / 18,640.36-25,723.66-10,687.17

Finding the Fourth Proportional to 18,640.36, 25,723.66 and 10,687.17

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Solution

The fourth proportional to 18,640.36, 25,723.66 and 10,687.17 is: 14,748.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.36 : 25,723.66 = 10,687.17 : x
  2. Step 2: Convert to fraction form
    18,640.36/25,723.66 = 10,687.17/x
  3. Step 3: Cross multiply
    18,640.36x = 25,723.66 × 10,687.17
  4. Step 4: Simplify right side
    18,640.36x = 274,913,127.44
  5. Step 5: Solve for x
    x = 274,913,127.44/18,640.36
  6. Step 6: Final answer
    x = 14,748.27

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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.