Home / 18,955.04-28,434.38-5,805.09

Finding the Fourth Proportional to 18,955.04, 28,434.38 and 5,805.09

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Solution

The fourth proportional to 18,955.04, 28,434.38 and 5,805.09 is: 8,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.04 : 28,434.38 = 5,805.09 : x
  2. Step 2: Convert to fraction form
    18,955.04/28,434.38 = 5,805.09/x
  3. Step 3: Cross multiply
    18,955.04x = 28,434.38 × 5,805.09
  4. Step 4: Simplify right side
    18,955.04x = 165,064,105.97
  5. Step 5: Solve for x
    x = 165,064,105.97/18,955.04
  6. Step 6: Final answer
    x = 8,708.19

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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.