Home / 18,119.96-27,182.51-5,641.25

Finding the Fourth Proportional to 18,119.96, 27,182.51 and 5,641.25

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Solution

The fourth proportional to 18,119.96, 27,182.51 and 5,641.25 is: 8,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.96 : 27,182.51 = 5,641.25 : x
  2. Step 2: Convert to fraction form
    18,119.96/27,182.51 = 5,641.25/x
  3. Step 3: Cross multiply
    18,119.96x = 27,182.51 × 5,641.25
  4. Step 4: Simplify right side
    18,119.96x = 153,343,334.54
  5. Step 5: Solve for x
    x = 153,343,334.54/18,119.96
  6. Step 6: Final answer
    x = 8,462.68

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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.