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Finding the Fourth Proportional to 8,758.30, 13,137.45 and 4,150.30

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Solution

The fourth proportional to 8,758.30, 13,137.45 and 4,150.30 is: 6,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.30 : 13,137.45 = 4,150.30 : x
  2. Step 2: Convert to fraction form
    8,758.30/13,137.45 = 4,150.30/x
  3. Step 3: Cross multiply
    8,758.30x = 13,137.45 × 4,150.30
  4. Step 4: Simplify right side
    8,758.30x = 54,524,358.74
  5. Step 5: Solve for x
    x = 54,524,358.74/8,758.30
  6. Step 6: Final answer
    x = 6,225.45

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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.