Home / 11,205.20-16,788.60-7,307.60

Finding the Fourth Proportional to 11,205.20, 16,788.60 and 7,307.60

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Solution

The fourth proportional to 11,205.20, 16,788.60 and 7,307.60 is: 10,948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.20 : 16,788.60 = 7,307.60 : x
  2. Step 2: Convert to fraction form
    11,205.20/16,788.60 = 7,307.60/x
  3. Step 3: Cross multiply
    11,205.20x = 16,788.60 × 7,307.60
  4. Step 4: Simplify right side
    11,205.20x = 122,684,373.36
  5. Step 5: Solve for x
    x = 122,684,373.36/11,205.20
  6. Step 6: Final answer
    x = 10,948.88

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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.