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Finding the Fourth Proportional to 7,104.64, 10,645.44 and 5,376.64

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Solution

The fourth proportional to 7,104.64, 10,645.44 and 5,376.64 is: 8,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.64 : 10,645.44 = 5,376.64 : x
  2. Step 2: Convert to fraction form
    7,104.64/10,645.44 = 5,376.64/x
  3. Step 3: Cross multiply
    7,104.64x = 10,645.44 × 5,376.64
  4. Step 4: Simplify right side
    7,104.64x = 57,236,698.52
  5. Step 5: Solve for x
    x = 57,236,698.52/7,104.64
  6. Step 6: Final answer
    x = 8,056.24

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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.