Home / 8,586.64-11,860.68-7,100.56

Finding the Fourth Proportional to 8,586.64, 11,860.68 and 7,100.56

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Solution

The fourth proportional to 8,586.64, 11,860.68 and 7,100.56 is: 9,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.64 : 11,860.68 = 7,100.56 : x
  2. Step 2: Convert to fraction form
    8,586.64/11,860.68 = 7,100.56/x
  3. Step 3: Cross multiply
    8,586.64x = 11,860.68 × 7,100.56
  4. Step 4: Simplify right side
    8,586.64x = 84,217,469.98
  5. Step 5: Solve for x
    x = 84,217,469.98/8,586.64
  6. Step 6: Final answer
    x = 9,807.97

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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.