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Finding the Fourth Proportional to 9,657.20, 14,464.20 and 8,361.20

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Solution

The fourth proportional to 9,657.20, 14,464.20 and 8,361.20 is: 12,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,657.20 : 14,464.20 = 8,361.20 : x
  2. Step 2: Convert to fraction form
    9,657.20/14,464.20 = 8,361.20/x
  3. Step 3: Cross multiply
    9,657.20x = 14,464.20 × 8,361.20
  4. Step 4: Simplify right side
    9,657.20x = 120,938,069.04
  5. Step 5: Solve for x
    x = 120,938,069.04/9,657.20
  6. Step 6: Final answer
    x = 12,523.10

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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.