Home / 12,262.32-18,400.77-6,420.60

Finding the Fourth Proportional to 12,262.32, 18,400.77 and 6,420.60

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Solution

The fourth proportional to 12,262.32, 18,400.77 and 6,420.60 is: 9,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,262.32 : 18,400.77 = 6,420.60 : x
  2. Step 2: Convert to fraction form
    12,262.32/18,400.77 = 6,420.60/x
  3. Step 3: Cross multiply
    12,262.32x = 18,400.77 × 6,420.60
  4. Step 4: Simplify right side
    12,262.32x = 118,143,983.86
  5. Step 5: Solve for x
    x = 118,143,983.86/12,262.32
  6. Step 6: Final answer
    x = 9,634.72

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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.