Home / 7,709.31-11,566.80-3,762.18

Finding the Fourth Proportional to 7,709.31, 11,566.80 and 3,762.18

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Solution

The fourth proportional to 7,709.31, 11,566.80 and 3,762.18 is: 5,644.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.31 : 11,566.80 = 3,762.18 : x
  2. Step 2: Convert to fraction form
    7,709.31/11,566.80 = 3,762.18/x
  3. Step 3: Cross multiply
    7,709.31x = 11,566.80 × 3,762.18
  4. Step 4: Simplify right side
    7,709.31x = 43,516,383.62
  5. Step 5: Solve for x
    x = 43,516,383.62/7,709.31
  6. Step 6: Final answer
    x = 5,644.65

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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.