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Finding the Fourth Proportional to 11,846.60, 17,748.30 and 7,224.20

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Solution

The fourth proportional to 11,846.60, 17,748.30 and 7,224.20 is: 10,823.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,846.60 : 17,748.30 = 7,224.20 : x
  2. Step 2: Convert to fraction form
    11,846.60/17,748.30 = 7,224.20/x
  3. Step 3: Cross multiply
    11,846.60x = 17,748.30 × 7,224.20
  4. Step 4: Simplify right side
    11,846.60x = 128,217,268.86
  5. Step 5: Solve for x
    x = 128,217,268.86/11,846.60
  6. Step 6: Final answer
    x = 10,823.13

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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.