Home / 8,636.21-12,966.44-4,422.48

Finding the Fourth Proportional to 8,636.21, 12,966.44 and 4,422.48

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Solution

The fourth proportional to 8,636.21, 12,966.44 and 4,422.48 is: 6,639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.21 : 12,966.44 = 4,422.48 : x
  2. Step 2: Convert to fraction form
    8,636.21/12,966.44 = 4,422.48/x
  3. Step 3: Cross multiply
    8,636.21x = 12,966.44 × 4,422.48
  4. Step 4: Simplify right side
    8,636.21x = 57,343,821.57
  5. Step 5: Solve for x
    x = 57,343,821.57/8,636.21
  6. Step 6: Final answer
    x = 6,639.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.