Home / 9,091.44-12,491.82-7,225.20

Finding the Fourth Proportional to 9,091.44, 12,491.82 and 7,225.20

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Solution

The fourth proportional to 9,091.44, 12,491.82 and 7,225.20 is: 9,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.44 : 12,491.82 = 7,225.20 : x
  2. Step 2: Convert to fraction form
    9,091.44/12,491.82 = 7,225.20/x
  3. Step 3: Cross multiply
    9,091.44x = 12,491.82 × 7,225.20
  4. Step 4: Simplify right side
    9,091.44x = 90,255,897.86
  5. Step 5: Solve for x
    x = 90,255,897.86/9,091.44
  6. Step 6: Final answer
    x = 9,927.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.