Home / 12,736.51-19,097.78-4,415.78

Finding the Fourth Proportional to 12,736.51, 19,097.78 and 4,415.78

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Solution

The fourth proportional to 12,736.51, 19,097.78 and 4,415.78 is: 6,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.51 : 19,097.78 = 4,415.78 : x
  2. Step 2: Convert to fraction form
    12,736.51/19,097.78 = 4,415.78/x
  3. Step 3: Cross multiply
    12,736.51x = 19,097.78 × 4,415.78
  4. Step 4: Simplify right side
    12,736.51x = 84,331,620.63
  5. Step 5: Solve for x
    x = 84,331,620.63/12,736.51
  6. Step 6: Final answer
    x = 6,621.25

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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.