Home / 18,319.03-27,480.35-5,171.51

Finding the Fourth Proportional to 18,319.03, 27,480.35 and 5,171.51

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Solution

The fourth proportional to 18,319.03, 27,480.35 and 5,171.51 is: 7,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.03 : 27,480.35 = 5,171.51 : x
  2. Step 2: Convert to fraction form
    18,319.03/27,480.35 = 5,171.51/x
  3. Step 3: Cross multiply
    18,319.03x = 27,480.35 × 5,171.51
  4. Step 4: Simplify right side
    18,319.03x = 142,114,904.83
  5. Step 5: Solve for x
    x = 142,114,904.83/18,319.03
  6. Step 6: Final answer
    x = 7,757.77

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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.