Home / 14,968.21-20,657.36-8,255.15

Finding the Fourth Proportional to 14,968.21, 20,657.36 and 8,255.15

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Solution

The fourth proportional to 14,968.21, 20,657.36 and 8,255.15 is: 11,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,968.21 : 20,657.36 = 8,255.15 : x
  2. Step 2: Convert to fraction form
    14,968.21/20,657.36 = 8,255.15/x
  3. Step 3: Cross multiply
    14,968.21x = 20,657.36 × 8,255.15
  4. Step 4: Simplify right side
    14,968.21x = 170,529,605.40
  5. Step 5: Solve for x
    x = 170,529,605.40/14,968.21
  6. Step 6: Final answer
    x = 11,392.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.