Home / 10,771.20-14,862.24-6,789.60

Finding the Fourth Proportional to 10,771.20, 14,862.24 and 6,789.60

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Solution

The fourth proportional to 10,771.20, 14,862.24 and 6,789.60 is: 9,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,771.20 : 14,862.24 = 6,789.60 : x
  2. Step 2: Convert to fraction form
    10,771.20/14,862.24 = 6,789.60/x
  3. Step 3: Cross multiply
    10,771.20x = 14,862.24 × 6,789.60
  4. Step 4: Simplify right side
    10,771.20x = 100,908,664.70
  5. Step 5: Solve for x
    x = 100,908,664.70/10,771.20
  6. Step 6: Final answer
    x = 9,368.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.