Home / 8,418.34-11,622.28-7,484.25

Finding the Fourth Proportional to 8,418.34, 11,622.28 and 7,484.25

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Solution

The fourth proportional to 8,418.34, 11,622.28 and 7,484.25 is: 10,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.34 : 11,622.28 = 7,484.25 : x
  2. Step 2: Convert to fraction form
    8,418.34/11,622.28 = 7,484.25/x
  3. Step 3: Cross multiply
    8,418.34x = 11,622.28 × 7,484.25
  4. Step 4: Simplify right side
    8,418.34x = 86,984,049.09
  5. Step 5: Solve for x
    x = 86,984,049.09/8,418.34
  6. Step 6: Final answer
    x = 10,332.69

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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.