Home / 10,984.40-16,454.20-6,811.60

Finding the Fourth Proportional to 10,984.40, 16,454.20 and 6,811.60

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Solution

The fourth proportional to 10,984.40, 16,454.20 and 6,811.60 is: 10,203.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,984.40 : 16,454.20 = 6,811.60 : x
  2. Step 2: Convert to fraction form
    10,984.40/16,454.20 = 6,811.60/x
  3. Step 3: Cross multiply
    10,984.40x = 16,454.20 × 6,811.60
  4. Step 4: Simplify right side
    10,984.40x = 112,079,428.72
  5. Step 5: Solve for x
    x = 112,079,428.72/10,984.40
  6. Step 6: Final answer
    x = 10,203.51

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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.