Home / 18,825.28-25,976.16-12,111.52

Finding the Fourth Proportional to 18,825.28, 25,976.16 and 12,111.52

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Solution

The fourth proportional to 18,825.28, 25,976.16 and 12,111.52 is: 16,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.28 : 25,976.16 = 12,111.52 : x
  2. Step 2: Convert to fraction form
    18,825.28/25,976.16 = 12,111.52/x
  3. Step 3: Cross multiply
    18,825.28x = 25,976.16 × 12,111.52
  4. Step 4: Simplify right side
    18,825.28x = 314,610,781.36
  5. Step 5: Solve for x
    x = 314,610,781.36/18,825.28
  6. Step 6: Final answer
    x = 16,712.14

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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.