Home / 15,238.10-21,027.60-8,522.57

Finding the Fourth Proportional to 15,238.10, 21,027.60 and 8,522.57

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Solution

The fourth proportional to 15,238.10, 21,027.60 and 8,522.57 is: 11,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.10 : 21,027.60 = 8,522.57 : x
  2. Step 2: Convert to fraction form
    15,238.10/21,027.60 = 8,522.57/x
  3. Step 3: Cross multiply
    15,238.10x = 21,027.60 × 8,522.57
  4. Step 4: Simplify right side
    15,238.10x = 179,209,245.50
  5. Step 5: Solve for x
    x = 179,209,245.50/15,238.10
  6. Step 6: Final answer
    x = 11,760.60

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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.