Home / 18,155.88-25,048.86-11,345.28

Finding the Fourth Proportional to 18,155.88, 25,048.86 and 11,345.28

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Solution

The fourth proportional to 18,155.88, 25,048.86 and 11,345.28 is: 15,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.88 : 25,048.86 = 11,345.28 : x
  2. Step 2: Convert to fraction form
    18,155.88/25,048.86 = 11,345.28/x
  3. Step 3: Cross multiply
    18,155.88x = 25,048.86 × 11,345.28
  4. Step 4: Simplify right side
    18,155.88x = 284,186,330.38
  5. Step 5: Solve for x
    x = 284,186,330.38/18,155.88
  6. Step 6: Final answer
    x = 15,652.58

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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.