Home / 10,889.60-16,334.40-6,504.80

Finding the Fourth Proportional to 10,889.60, 16,334.40 and 6,504.80

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Solution

The fourth proportional to 10,889.60, 16,334.40 and 6,504.80 is: 9,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.60 : 16,334.40 = 6,504.80 : x
  2. Step 2: Convert to fraction form
    10,889.60/16,334.40 = 6,504.80/x
  3. Step 3: Cross multiply
    10,889.60x = 16,334.40 × 6,504.80
  4. Step 4: Simplify right side
    10,889.60x = 106,252,005.12
  5. Step 5: Solve for x
    x = 106,252,005.12/10,889.60
  6. Step 6: Final answer
    x = 9,757.20

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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.