Home / 15,293.24-21,105.60-8,579.44

Finding the Fourth Proportional to 15,293.24, 21,105.60 and 8,579.44

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Solution

The fourth proportional to 15,293.24, 21,105.60 and 8,579.44 is: 11,840.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.24 : 21,105.60 = 8,579.44 : x
  2. Step 2: Convert to fraction form
    15,293.24/21,105.60 = 8,579.44/x
  3. Step 3: Cross multiply
    15,293.24x = 21,105.60 × 8,579.44
  4. Step 4: Simplify right side
    15,293.24x = 181,074,228.86
  5. Step 5: Solve for x
    x = 181,074,228.86/15,293.24
  6. Step 6: Final answer
    x = 11,840.15

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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.