Home / 18,857.10-28,291.78-8,995.08

Finding the Fourth Proportional to 18,857.10, 28,291.78 and 8,995.08

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Solution

The fourth proportional to 18,857.10, 28,291.78 and 8,995.08 is: 13,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.10 : 28,291.78 = 8,995.08 : x
  2. Step 2: Convert to fraction form
    18,857.10/28,291.78 = 8,995.08/x
  3. Step 3: Cross multiply
    18,857.10x = 28,291.78 × 8,995.08
  4. Step 4: Simplify right side
    18,857.10x = 254,486,824.44
  5. Step 5: Solve for x
    x = 254,486,824.44/18,857.10
  6. Step 6: Final answer
    x = 13,495.54

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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.