Home / 7,670.24-11,449.36-6,581.60

Finding the Fourth Proportional to 7,670.24, 11,449.36 and 6,581.60

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Solution

The fourth proportional to 7,670.24, 11,449.36 and 6,581.60 is: 9,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.24 : 11,449.36 = 6,581.60 : x
  2. Step 2: Convert to fraction form
    7,670.24/11,449.36 = 6,581.60/x
  3. Step 3: Cross multiply
    7,670.24x = 11,449.36 × 6,581.60
  4. Step 4: Simplify right side
    7,670.24x = 75,355,034.08
  5. Step 5: Solve for x
    x = 75,355,034.08/7,670.24
  6. Step 6: Final answer
    x = 9,824.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.