Home / 18,641.48-27,976.19-11,631.74

Finding the Fourth Proportional to 18,641.48, 27,976.19 and 11,631.74

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Solution

The fourth proportional to 18,641.48, 27,976.19 and 11,631.74 is: 17,456.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.48 : 27,976.19 = 11,631.74 : x
  2. Step 2: Convert to fraction form
    18,641.48/27,976.19 = 11,631.74/x
  3. Step 3: Cross multiply
    18,641.48x = 27,976.19 × 11,631.74
  4. Step 4: Simplify right side
    18,641.48x = 325,411,570.23
  5. Step 5: Solve for x
    x = 325,411,570.23/18,641.48
  6. Step 6: Final answer
    x = 17,456.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.