Home / 12,808.46-19,212.69-3,448.50

Finding the Fourth Proportional to 12,808.46, 19,212.69 and 3,448.50

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Solution

The fourth proportional to 12,808.46, 19,212.69 and 3,448.50 is: 5,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.46 : 19,212.69 = 3,448.50 : x
  2. Step 2: Convert to fraction form
    12,808.46/19,212.69 = 3,448.50/x
  3. Step 3: Cross multiply
    12,808.46x = 19,212.69 × 3,448.50
  4. Step 4: Simplify right side
    12,808.46x = 66,254,961.47
  5. Step 5: Solve for x
    x = 66,254,961.47/12,808.46
  6. Step 6: Final answer
    x = 5,172.75

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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.