Home / 18,640.48-25,722.96-10,256.80

Finding the Fourth Proportional to 18,640.48, 25,722.96 and 10,256.80

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Solution

The fourth proportional to 18,640.48, 25,722.96 and 10,256.80 is: 14,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.48 : 25,722.96 = 10,256.80 : x
  2. Step 2: Convert to fraction form
    18,640.48/25,722.96 = 10,256.80/x
  3. Step 3: Cross multiply
    18,640.48x = 25,722.96 × 10,256.80
  4. Step 4: Simplify right side
    18,640.48x = 263,835,256.13
  5. Step 5: Solve for x
    x = 263,835,256.13/18,640.48
  6. Step 6: Final answer
    x = 14,153.89

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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.