Home / 18,825.65-25,961.58-11,270.78

Finding the Fourth Proportional to 18,825.65, 25,961.58 and 11,270.78

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Solution

The fourth proportional to 18,825.65, 25,961.58 and 11,270.78 is: 15,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.65 : 25,961.58 = 11,270.78 : x
  2. Step 2: Convert to fraction form
    18,825.65/25,961.58 = 11,270.78/x
  3. Step 3: Cross multiply
    18,825.65x = 25,961.58 × 11,270.78
  4. Step 4: Simplify right side
    18,825.65x = 292,607,256.63
  5. Step 5: Solve for x
    x = 292,607,256.63/18,825.65
  6. Step 6: Final answer
    x = 15,543.01

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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.