Home / 7,720.85-11,565.07-6,069.53

Finding the Fourth Proportional to 7,720.85, 11,565.07 and 6,069.53

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Solution

The fourth proportional to 7,720.85, 11,565.07 and 6,069.53 is: 9,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.85 : 11,565.07 = 6,069.53 : x
  2. Step 2: Convert to fraction form
    7,720.85/11,565.07 = 6,069.53/x
  3. Step 3: Cross multiply
    7,720.85x = 11,565.07 × 6,069.53
  4. Step 4: Simplify right side
    7,720.85x = 70,194,539.32
  5. Step 5: Solve for x
    x = 70,194,539.32/7,720.85
  6. Step 6: Final answer
    x = 9,091.56

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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.