Home / 6,355.20-9,511.20-5,577.60

Finding the Fourth Proportional to 6,355.20, 9,511.20 and 5,577.60

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Solution

The fourth proportional to 6,355.20, 9,511.20 and 5,577.60 is: 8,347.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.20 : 9,511.20 = 5,577.60 : x
  2. Step 2: Convert to fraction form
    6,355.20/9,511.20 = 5,577.60/x
  3. Step 3: Cross multiply
    6,355.20x = 9,511.20 × 5,577.60
  4. Step 4: Simplify right side
    6,355.20x = 53,049,669.12
  5. Step 5: Solve for x
    x = 53,049,669.12/6,355.20
  6. Step 6: Final answer
    x = 8,347.44

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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.