Home / 8,615.21-11,897.30-7,424.92

Finding the Fourth Proportional to 8,615.21, 11,897.30 and 7,424.92

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Solution

The fourth proportional to 8,615.21, 11,897.30 and 7,424.92 is: 10,253.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.21 : 11,897.30 = 7,424.92 : x
  2. Step 2: Convert to fraction form
    8,615.21/11,897.30 = 7,424.92/x
  3. Step 3: Cross multiply
    8,615.21x = 11,897.30 × 7,424.92
  4. Step 4: Simplify right side
    8,615.21x = 88,336,404.10
  5. Step 5: Solve for x
    x = 88,336,404.10/8,615.21
  6. Step 6: Final answer
    x = 10,253.54

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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.