Home / 10,669.60-16,004.40-6,776.80

Finding the Fourth Proportional to 10,669.60, 16,004.40 and 6,776.80

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Solution

The fourth proportional to 10,669.60, 16,004.40 and 6,776.80 is: 10,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.60 : 16,004.40 = 6,776.80 : x
  2. Step 2: Convert to fraction form
    10,669.60/16,004.40 = 6,776.80/x
  3. Step 3: Cross multiply
    10,669.60x = 16,004.40 × 6,776.80
  4. Step 4: Simplify right side
    10,669.60x = 108,458,617.92
  5. Step 5: Solve for x
    x = 108,458,617.92/10,669.60
  6. Step 6: Final answer
    x = 10,165.20

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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.