Home / 8,255.64-11,358.99-7,132.98

Finding the Fourth Proportional to 8,255.64, 11,358.99 and 7,132.98

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Solution

The fourth proportional to 8,255.64, 11,358.99 and 7,132.98 is: 9,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.64 : 11,358.99 = 7,132.98 : x
  2. Step 2: Convert to fraction form
    8,255.64/11,358.99 = 7,132.98/x
  3. Step 3: Cross multiply
    8,255.64x = 11,358.99 × 7,132.98
  4. Step 4: Simplify right side
    8,255.64x = 81,023,448.49
  5. Step 5: Solve for x
    x = 81,023,448.49/8,255.64
  6. Step 6: Final answer
    x = 9,814.31

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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.