Home / 12,223.95-18,336.63-3,458.13

Finding the Fourth Proportional to 12,223.95, 18,336.63 and 3,458.13

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Solution

The fourth proportional to 12,223.95, 18,336.63 and 3,458.13 is: 5,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.95 : 18,336.63 = 3,458.13 : x
  2. Step 2: Convert to fraction form
    12,223.95/18,336.63 = 3,458.13/x
  3. Step 3: Cross multiply
    12,223.95x = 18,336.63 × 3,458.13
  4. Step 4: Simplify right side
    12,223.95x = 63,410,341.33
  5. Step 5: Solve for x
    x = 63,410,341.33/12,223.95
  6. Step 6: Final answer
    x = 5,187.39

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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.