Home / 9,577.20-13,216.40-5,385.44

Finding the Fourth Proportional to 9,577.20, 13,216.40 and 5,385.44

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Solution

The fourth proportional to 9,577.20, 13,216.40 and 5,385.44 is: 7,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,577.20 : 13,216.40 = 5,385.44 : x
  2. Step 2: Convert to fraction form
    9,577.20/13,216.40 = 5,385.44/x
  3. Step 3: Cross multiply
    9,577.20x = 13,216.40 × 5,385.44
  4. Step 4: Simplify right side
    9,577.20x = 71,176,129.22
  5. Step 5: Solve for x
    x = 71,176,129.22/9,577.20
  6. Step 6: Final answer
    x = 7,431.83

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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.