Home / 18,359.19-25,335.72-10,805.54

Finding the Fourth Proportional to 18,359.19, 25,335.72 and 10,805.54

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Solution

The fourth proportional to 18,359.19, 25,335.72 and 10,805.54 is: 14,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.19 : 25,335.72 = 10,805.54 : x
  2. Step 2: Convert to fraction form
    18,359.19/25,335.72 = 10,805.54/x
  3. Step 3: Cross multiply
    18,359.19x = 25,335.72 × 10,805.54
  4. Step 4: Simplify right side
    18,359.19x = 273,766,009.21
  5. Step 5: Solve for x
    x = 273,766,009.21/18,359.19
  6. Step 6: Final answer
    x = 14,911.66

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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.