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Finding the Fourth Proportional to 8,641.53, 12,965.33 and 4,946.85

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Solution

The fourth proportional to 8,641.53, 12,965.33 and 4,946.85 is: 7,422.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.53 : 12,965.33 = 4,946.85 : x
  2. Step 2: Convert to fraction form
    8,641.53/12,965.33 = 4,946.85/x
  3. Step 3: Cross multiply
    8,641.53x = 12,965.33 × 4,946.85
  4. Step 4: Simplify right side
    8,641.53x = 64,137,555.08
  5. Step 5: Solve for x
    x = 64,137,555.08/8,641.53
  6. Step 6: Final answer
    x = 7,422.01

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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.