Home / 11,275.60-16,913.40-3,485.20

Finding the Fourth Proportional to 11,275.60, 16,913.40 and 3,485.20

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Solution

The fourth proportional to 11,275.60, 16,913.40 and 3,485.20 is: 5,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.60 : 16,913.40 = 3,485.20 : x
  2. Step 2: Convert to fraction form
    11,275.60/16,913.40 = 3,485.20/x
  3. Step 3: Cross multiply
    11,275.60x = 16,913.40 × 3,485.20
  4. Step 4: Simplify right side
    11,275.60x = 58,946,581.68
  5. Step 5: Solve for x
    x = 58,946,581.68/11,275.60
  6. Step 6: Final answer
    x = 5,227.80

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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.