Home / 18,639.48-25,722.60-10,141.68

Finding the Fourth Proportional to 18,639.48, 25,722.60 and 10,141.68

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Solution

The fourth proportional to 18,639.48, 25,722.60 and 10,141.68 is: 13,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.48 : 25,722.60 = 10,141.68 : x
  2. Step 2: Convert to fraction form
    18,639.48/25,722.60 = 10,141.68/x
  3. Step 3: Cross multiply
    18,639.48x = 25,722.60 × 10,141.68
  4. Step 4: Simplify right side
    18,639.48x = 260,870,377.97
  5. Step 5: Solve for x
    x = 260,870,377.97/18,639.48
  6. Step 6: Final answer
    x = 13,995.58

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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.