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Finding the Fourth Proportional to 6,533.60, 9,789.60 and 5,561.60

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Solution

The fourth proportional to 6,533.60, 9,789.60 and 5,561.60 is: 8,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,533.60 : 9,789.60 = 5,561.60 : x
  2. Step 2: Convert to fraction form
    6,533.60/9,789.60 = 5,561.60/x
  3. Step 3: Cross multiply
    6,533.60x = 9,789.60 × 5,561.60
  4. Step 4: Simplify right side
    6,533.60x = 54,445,839.36
  5. Step 5: Solve for x
    x = 54,445,839.36/6,533.60
  6. Step 6: Final answer
    x = 8,333.21

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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.