Home / 13,466.40-20,179.80-9,776.40

Finding the Fourth Proportional to 13,466.40, 20,179.80 and 9,776.40

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Solution

The fourth proportional to 13,466.40, 20,179.80 and 9,776.40 is: 14,650.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.40 : 20,179.80 = 9,776.40 : x
  2. Step 2: Convert to fraction form
    13,466.40/20,179.80 = 9,776.40/x
  3. Step 3: Cross multiply
    13,466.40x = 20,179.80 × 9,776.40
  4. Step 4: Simplify right side
    13,466.40x = 197,285,796.72
  5. Step 5: Solve for x
    x = 197,285,796.72/13,466.40
  6. Step 6: Final answer
    x = 14,650.23

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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.