Home / 18,495.28-25,523.46-10,111.78

Finding the Fourth Proportional to 18,495.28, 25,523.46 and 10,111.78

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Solution

The fourth proportional to 18,495.28, 25,523.46 and 10,111.78 is: 13,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.28 : 25,523.46 = 10,111.78 : x
  2. Step 2: Convert to fraction form
    18,495.28/25,523.46 = 10,111.78/x
  3. Step 3: Cross multiply
    18,495.28x = 25,523.46 × 10,111.78
  4. Step 4: Simplify right side
    18,495.28x = 258,087,612.36
  5. Step 5: Solve for x
    x = 258,087,612.36/18,495.28
  6. Step 6: Final answer
    x = 13,954.24

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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.