Home / 11,004.80-16,507.20-4,078.40

Finding the Fourth Proportional to 11,004.80, 16,507.20 and 4,078.40

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Solution

The fourth proportional to 11,004.80, 16,507.20 and 4,078.40 is: 6,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,004.80 : 16,507.20 = 4,078.40 : x
  2. Step 2: Convert to fraction form
    11,004.80/16,507.20 = 4,078.40/x
  3. Step 3: Cross multiply
    11,004.80x = 16,507.20 × 4,078.40
  4. Step 4: Simplify right side
    11,004.80x = 67,322,964.48
  5. Step 5: Solve for x
    x = 67,322,964.48/11,004.80
  6. Step 6: Final answer
    x = 6,117.60

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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.