Home / 15,442.57-21,310.99-8,637.33

Finding the Fourth Proportional to 15,442.57, 21,310.99 and 8,637.33

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Solution

The fourth proportional to 15,442.57, 21,310.99 and 8,637.33 is: 11,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.57 : 21,310.99 = 8,637.33 : x
  2. Step 2: Convert to fraction form
    15,442.57/21,310.99 = 8,637.33/x
  3. Step 3: Cross multiply
    15,442.57x = 21,310.99 × 8,637.33
  4. Step 4: Simplify right side
    15,442.57x = 184,070,099.43
  5. Step 5: Solve for x
    x = 184,070,099.43/15,442.57
  6. Step 6: Final answer
    x = 11,919.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.