Home / 12,735.39-19,078.23-8,339.52

Finding the Fourth Proportional to 12,735.39, 19,078.23 and 8,339.52

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Solution

The fourth proportional to 12,735.39, 19,078.23 and 8,339.52 is: 12,493.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.39 : 19,078.23 = 8,339.52 : x
  2. Step 2: Convert to fraction form
    12,735.39/19,078.23 = 8,339.52/x
  3. Step 3: Cross multiply
    12,735.39x = 19,078.23 × 8,339.52
  4. Step 4: Simplify right side
    12,735.39x = 159,103,302.98
  5. Step 5: Solve for x
    x = 159,103,302.98/12,735.39
  6. Step 6: Final answer
    x = 12,493.01

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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.