Home / 12,804.24-19,215.08-7,858.79

Finding the Fourth Proportional to 12,804.24, 19,215.08 and 7,858.79

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Solution

The fourth proportional to 12,804.24, 19,215.08 and 7,858.79 is: 11,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.24 : 19,215.08 = 7,858.79 : x
  2. Step 2: Convert to fraction form
    12,804.24/19,215.08 = 7,858.79/x
  3. Step 3: Cross multiply
    12,804.24x = 19,215.08 × 7,858.79
  4. Step 4: Simplify right side
    12,804.24x = 151,007,244.71
  5. Step 5: Solve for x
    x = 151,007,244.71/12,804.24
  6. Step 6: Final answer
    x = 11,793.53

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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.