Home / 7,014.60-9,660.47-6,861.51

Finding the Fourth Proportional to 7,014.60, 9,660.47 and 6,861.51

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Solution

The fourth proportional to 7,014.60, 9,660.47 and 6,861.51 is: 9,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.60 : 9,660.47 = 6,861.51 : x
  2. Step 2: Convert to fraction form
    7,014.60/9,660.47 = 6,861.51/x
  3. Step 3: Cross multiply
    7,014.60x = 9,660.47 × 6,861.51
  4. Step 4: Simplify right side
    7,014.60x = 66,285,377.20
  5. Step 5: Solve for x
    x = 66,285,377.20/7,014.60
  6. Step 6: Final answer
    x = 9,449.63

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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.