Home / 12,636.39-18,929.21-6,292.16

Finding the Fourth Proportional to 12,636.39, 18,929.21 and 6,292.16

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Solution

The fourth proportional to 12,636.39, 18,929.21 and 6,292.16 is: 9,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.39 : 18,929.21 = 6,292.16 : x
  2. Step 2: Convert to fraction form
    12,636.39/18,929.21 = 6,292.16/x
  3. Step 3: Cross multiply
    12,636.39x = 18,929.21 × 6,292.16
  4. Step 4: Simplify right side
    12,636.39x = 119,105,562.87
  5. Step 5: Solve for x
    x = 119,105,562.87/12,636.39
  6. Step 6: Final answer
    x = 9,425.60

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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.