Home / 7,777.06-11,650.05-5,305.75

Finding the Fourth Proportional to 7,777.06, 11,650.05 and 5,305.75

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Solution

The fourth proportional to 7,777.06, 11,650.05 and 5,305.75 is: 7,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.06 : 11,650.05 = 5,305.75 : x
  2. Step 2: Convert to fraction form
    7,777.06/11,650.05 = 5,305.75/x
  3. Step 3: Cross multiply
    7,777.06x = 11,650.05 × 5,305.75
  4. Step 4: Simplify right side
    7,777.06x = 61,812,252.79
  5. Step 5: Solve for x
    x = 61,812,252.79/7,777.06
  6. Step 6: Final answer
    x = 7,948.02

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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.