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Finding the Fourth Proportional to 8,276.60, 11,410.53 and 5,619.40

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Solution

The fourth proportional to 8,276.60, 11,410.53 and 5,619.40 is: 7,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.60 : 11,410.53 = 5,619.40 : x
  2. Step 2: Convert to fraction form
    8,276.60/11,410.53 = 5,619.40/x
  3. Step 3: Cross multiply
    8,276.60x = 11,410.53 × 5,619.40
  4. Step 4: Simplify right side
    8,276.60x = 64,120,261.18
  5. Step 5: Solve for x
    x = 64,120,261.18/8,276.60
  6. Step 6: Final answer
    x = 7,747.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.