Home / 18,758.74-28,142.16-5,612.26

Finding the Fourth Proportional to 18,758.74, 28,142.16 and 5,612.26

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Solution

The fourth proportional to 18,758.74, 28,142.16 and 5,612.26 is: 8,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.74 : 28,142.16 = 5,612.26 : x
  2. Step 2: Convert to fraction form
    18,758.74/28,142.16 = 5,612.26/x
  3. Step 3: Cross multiply
    18,758.74x = 28,142.16 × 5,612.26
  4. Step 4: Simplify right side
    18,758.74x = 157,941,118.88
  5. Step 5: Solve for x
    x = 157,941,118.88/18,758.74
  6. Step 6: Final answer
    x = 8,419.60

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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.