Home / 12,849.64-19,284.73-12,439.58

Finding the Fourth Proportional to 12,849.64, 19,284.73 and 12,439.58

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Solution

The fourth proportional to 12,849.64, 19,284.73 and 12,439.58 is: 18,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.64 : 19,284.73 = 12,439.58 : x
  2. Step 2: Convert to fraction form
    12,849.64/19,284.73 = 12,439.58/x
  3. Step 3: Cross multiply
    12,849.64x = 19,284.73 × 12,439.58
  4. Step 4: Simplify right side
    12,849.64x = 239,893,884.06
  5. Step 5: Solve for x
    x = 239,893,884.06/12,849.64
  6. Step 6: Final answer
    x = 18,669.31

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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.