Home / 14,664.67-20,232.48-8,290.64

Finding the Fourth Proportional to 14,664.67, 20,232.48 and 8,290.64

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Solution

The fourth proportional to 14,664.67, 20,232.48 and 8,290.64 is: 11,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,664.67 : 20,232.48 = 8,290.64 : x
  2. Step 2: Convert to fraction form
    14,664.67/20,232.48 = 8,290.64/x
  3. Step 3: Cross multiply
    14,664.67x = 20,232.48 × 8,290.64
  4. Step 4: Simplify right side
    14,664.67x = 167,740,289.66
  5. Step 5: Solve for x
    x = 167,740,289.66/14,664.67
  6. Step 6: Final answer
    x = 11,438.40

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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.