Home / 7,765.05-11,653.40-5,690.34

Finding the Fourth Proportional to 7,765.05, 11,653.40 and 5,690.34

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Solution

The fourth proportional to 7,765.05, 11,653.40 and 5,690.34 is: 8,539.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.05 : 11,653.40 = 5,690.34 : x
  2. Step 2: Convert to fraction form
    7,765.05/11,653.40 = 5,690.34/x
  3. Step 3: Cross multiply
    7,765.05x = 11,653.40 × 5,690.34
  4. Step 4: Simplify right side
    7,765.05x = 66,311,808.16
  5. Step 5: Solve for x
    x = 66,311,808.16/7,765.05
  6. Step 6: Final answer
    x = 8,539.78

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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.