Home / 7,906.72-11,871.60-5,610.40

Finding the Fourth Proportional to 7,906.72, 11,871.60 and 5,610.40

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Solution

The fourth proportional to 7,906.72, 11,871.60 and 5,610.40 is: 8,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.72 : 11,871.60 = 5,610.40 : x
  2. Step 2: Convert to fraction form
    7,906.72/11,871.60 = 5,610.40/x
  3. Step 3: Cross multiply
    7,906.72x = 11,871.60 × 5,610.40
  4. Step 4: Simplify right side
    7,906.72x = 66,604,424.64
  5. Step 5: Solve for x
    x = 66,604,424.64/7,906.72
  6. Step 6: Final answer
    x = 8,423.77

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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.