Home / 12,257.90-18,347.70-6,627.86

Finding the Fourth Proportional to 12,257.90, 18,347.70 and 6,627.86

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Solution

The fourth proportional to 12,257.90, 18,347.70 and 6,627.86 is: 9,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.90 : 18,347.70 = 6,627.86 : x
  2. Step 2: Convert to fraction form
    12,257.90/18,347.70 = 6,627.86/x
  3. Step 3: Cross multiply
    12,257.90x = 18,347.70 × 6,627.86
  4. Step 4: Simplify right side
    12,257.90x = 121,605,986.92
  5. Step 5: Solve for x
    x = 121,605,986.92/12,257.90
  6. Step 6: Final answer
    x = 9,920.62

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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.