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Finding the Fourth Proportional to 9,664.40, 14,496.60 and 4,480.40

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Solution

The fourth proportional to 9,664.40, 14,496.60 and 4,480.40 is: 6,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,664.40 : 14,496.60 = 4,480.40 : x
  2. Step 2: Convert to fraction form
    9,664.40/14,496.60 = 4,480.40/x
  3. Step 3: Cross multiply
    9,664.40x = 14,496.60 × 4,480.40
  4. Step 4: Simplify right side
    9,664.40x = 64,950,566.64
  5. Step 5: Solve for x
    x = 64,950,566.64/9,664.40
  6. Step 6: Final answer
    x = 6,720.60

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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.