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Finding the Fourth Proportional to 8,630.18, 12,946.01 and 3,698.65

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Solution

The fourth proportional to 8,630.18, 12,946.01 and 3,698.65 is: 5,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.18 : 12,946.01 = 3,698.65 : x
  2. Step 2: Convert to fraction form
    8,630.18/12,946.01 = 3,698.65/x
  3. Step 3: Cross multiply
    8,630.18x = 12,946.01 × 3,698.65
  4. Step 4: Simplify right side
    8,630.18x = 47,882,775.78
  5. Step 5: Solve for x
    x = 47,882,775.78/8,630.18
  6. Step 6: Final answer
    x = 5,548.29

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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.