Home / 8,194.72-11,312.97-5,520

Finding the Fourth Proportional to 8,194.72, 11,312.97 and 5,520

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Solution

The fourth proportional to 8,194.72, 11,312.97 and 5,520 is: 7,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,194.72 : 11,312.97 = 5,520 : x
  2. Step 2: Convert to fraction form
    8,194.72/11,312.97 = 5,520/x
  3. Step 3: Cross multiply
    8,194.72x = 11,312.97 × 5,520
  4. Step 4: Simplify right side
    8,194.72x = 62,447,566.80
  5. Step 5: Solve for x
    x = 62,447,566.80/8,194.72
  6. Step 6: Final answer
    x = 7,620.46

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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.