Home / 18,319.98-27,480.93-5,173.38

Finding the Fourth Proportional to 18,319.98, 27,480.93 and 5,173.38

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Solution

The fourth proportional to 18,319.98, 27,480.93 and 5,173.38 is: 7,760.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.98 : 27,480.93 = 5,173.38 : x
  2. Step 2: Convert to fraction form
    18,319.98/27,480.93 = 5,173.38/x
  3. Step 3: Cross multiply
    18,319.98x = 27,480.93 × 5,173.38
  4. Step 4: Simplify right side
    18,319.98x = 142,169,293.64
  5. Step 5: Solve for x
    x = 142,169,293.64/18,319.98
  6. Step 6: Final answer
    x = 7,760.34

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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.