Home / 18,739.53-28,109.30-5,601.13

Finding the Fourth Proportional to 18,739.53, 28,109.30 and 5,601.13

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Solution

The fourth proportional to 18,739.53, 28,109.30 and 5,601.13 is: 8,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.53 : 28,109.30 = 5,601.13 : x
  2. Step 2: Convert to fraction form
    18,739.53/28,109.30 = 5,601.13/x
  3. Step 3: Cross multiply
    18,739.53x = 28,109.30 × 5,601.13
  4. Step 4: Simplify right side
    18,739.53x = 157,443,843.51
  5. Step 5: Solve for x
    x = 157,443,843.51/18,739.53
  6. Step 6: Final answer
    x = 8,401.70

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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.