Home / 18,640.09-25,722.25-10,256.59

Finding the Fourth Proportional to 18,640.09, 25,722.25 and 10,256.59

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Solution

The fourth proportional to 18,640.09, 25,722.25 and 10,256.59 is: 14,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.09 : 25,722.25 = 10,256.59 : x
  2. Step 2: Convert to fraction form
    18,640.09/25,722.25 = 10,256.59/x
  3. Step 3: Cross multiply
    18,640.09x = 25,722.25 × 10,256.59
  4. Step 4: Simplify right side
    18,640.09x = 263,822,572.13
  5. Step 5: Solve for x
    x = 263,822,572.13/18,640.09
  6. Step 6: Final answer
    x = 14,153.50

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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.