Home / 12,897.92-19,345.68-3,537.60

Finding the Fourth Proportional to 12,897.92, 19,345.68 and 3,537.60

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Solution

The fourth proportional to 12,897.92, 19,345.68 and 3,537.60 is: 5,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.92 : 19,345.68 = 3,537.60 : x
  2. Step 2: Convert to fraction form
    12,897.92/19,345.68 = 3,537.60/x
  3. Step 3: Cross multiply
    12,897.92x = 19,345.68 × 3,537.60
  4. Step 4: Simplify right side
    12,897.92x = 68,437,277.57
  5. Step 5: Solve for x
    x = 68,437,277.57/12,897.92
  6. Step 6: Final answer
    x = 5,306.07

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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.