Home / 7,165.44-9,888.96-4,182.72

Finding the Fourth Proportional to 7,165.44, 9,888.96 and 4,182.72

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Solution

The fourth proportional to 7,165.44, 9,888.96 and 4,182.72 is: 5,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.44 : 9,888.96 = 4,182.72 : x
  2. Step 2: Convert to fraction form
    7,165.44/9,888.96 = 4,182.72/x
  3. Step 3: Cross multiply
    7,165.44x = 9,888.96 × 4,182.72
  4. Step 4: Simplify right side
    7,165.44x = 41,362,750.77
  5. Step 5: Solve for x
    x = 41,362,750.77/7,165.44
  6. Step 6: Final answer
    x = 5,772.53

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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.