Home / 18,752.36-28,142.38-8,891.68

Finding the Fourth Proportional to 18,752.36, 28,142.38 and 8,891.68

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Solution

The fourth proportional to 18,752.36, 28,142.38 and 8,891.68 is: 13,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.36 : 28,142.38 = 8,891.68 : x
  2. Step 2: Convert to fraction form
    18,752.36/28,142.38 = 8,891.68/x
  3. Step 3: Cross multiply
    18,752.36x = 28,142.38 × 8,891.68
  4. Step 4: Simplify right side
    18,752.36x = 250,232,965.21
  5. Step 5: Solve for x
    x = 250,232,965.21/18,752.36
  6. Step 6: Final answer
    x = 13,344.08

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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.