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Finding the Fourth Proportional to 9,385.60, 14,081.10 and 2,812.30

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Solution

The fourth proportional to 9,385.60, 14,081.10 and 2,812.30 is: 4,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,385.60 : 14,081.10 = 2,812.30 : x
  2. Step 2: Convert to fraction form
    9,385.60/14,081.10 = 2,812.30/x
  3. Step 3: Cross multiply
    9,385.60x = 14,081.10 × 2,812.30
  4. Step 4: Simplify right side
    9,385.60x = 39,600,277.53
  5. Step 5: Solve for x
    x = 39,600,277.53/9,385.60
  6. Step 6: Final answer
    x = 4,219.26

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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.