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Finding the Fourth Proportional to 9,900.60, 14,830.20 and 4,640.10

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Solution

The fourth proportional to 9,900.60, 14,830.20 and 4,640.10 is: 6,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.60 : 14,830.20 = 4,640.10 : x
  2. Step 2: Convert to fraction form
    9,900.60/14,830.20 = 4,640.10/x
  3. Step 3: Cross multiply
    9,900.60x = 14,830.20 × 4,640.10
  4. Step 4: Simplify right side
    9,900.60x = 68,813,611.02
  5. Step 5: Solve for x
    x = 68,813,611.02/9,900.60
  6. Step 6: Final answer
    x = 6,950.45

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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.