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Finding the Fourth Proportional to 13,168.30, 19,704.45 and 9,712.30

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Solution

The fourth proportional to 13,168.30, 19,704.45 and 9,712.30 is: 14,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.30 : 19,704.45 = 9,712.30 : x
  2. Step 2: Convert to fraction form
    13,168.30/19,704.45 = 9,712.30/x
  3. Step 3: Cross multiply
    13,168.30x = 19,704.45 × 9,712.30
  4. Step 4: Simplify right side
    13,168.30x = 191,375,529.74
  5. Step 5: Solve for x
    x = 191,375,529.74/13,168.30
  6. Step 6: Final answer
    x = 14,533.05

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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.