Home / 8,325.44-12,417.70-7,221.02

Finding the Fourth Proportional to 8,325.44, 12,417.70 and 7,221.02

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Solution

The fourth proportional to 8,325.44, 12,417.70 and 7,221.02 is: 10,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.44 : 12,417.70 = 7,221.02 : x
  2. Step 2: Convert to fraction form
    8,325.44/12,417.70 = 7,221.02/x
  3. Step 3: Cross multiply
    8,325.44x = 12,417.70 × 7,221.02
  4. Step 4: Simplify right side
    8,325.44x = 89,668,460.05
  5. Step 5: Solve for x
    x = 89,668,460.05/8,325.44
  6. Step 6: Final answer
    x = 10,770.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.