Home / 12,272.32-18,415.77-6,430.60

Finding the Fourth Proportional to 12,272.32, 18,415.77 and 6,430.60

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Solution

The fourth proportional to 12,272.32, 18,415.77 and 6,430.60 is: 9,649.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.32 : 18,415.77 = 6,430.60 : x
  2. Step 2: Convert to fraction form
    12,272.32/18,415.77 = 6,430.60/x
  3. Step 3: Cross multiply
    12,272.32x = 18,415.77 × 6,430.60
  4. Step 4: Simplify right side
    12,272.32x = 118,424,450.56
  5. Step 5: Solve for x
    x = 118,424,450.56/12,272.32
  6. Step 6: Final answer
    x = 9,649.72

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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.