Home / 12,355.83-18,511.88-10,263.60

Finding the Fourth Proportional to 12,355.83, 18,511.88 and 10,263.60

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Solution

The fourth proportional to 12,355.83, 18,511.88 and 10,263.60 is: 15,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.83 : 18,511.88 = 10,263.60 : x
  2. Step 2: Convert to fraction form
    12,355.83/18,511.88 = 10,263.60/x
  3. Step 3: Cross multiply
    12,355.83x = 18,511.88 × 10,263.60
  4. Step 4: Simplify right side
    12,355.83x = 189,998,480.25
  5. Step 5: Solve for x
    x = 189,998,480.25/12,355.83
  6. Step 6: Final answer
    x = 15,377.23

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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.