Home / 12,897.87-19,345.99-4,576.79

Finding the Fourth Proportional to 12,897.87, 19,345.99 and 4,576.79

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Solution

The fourth proportional to 12,897.87, 19,345.99 and 4,576.79 is: 6,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.87 : 19,345.99 = 4,576.79 : x
  2. Step 2: Convert to fraction form
    12,897.87/19,345.99 = 4,576.79/x
  3. Step 3: Cross multiply
    12,897.87x = 19,345.99 × 4,576.79
  4. Step 4: Simplify right side
    12,897.87x = 88,542,470.26
  5. Step 5: Solve for x
    x = 88,542,470.26/12,897.87
  6. Step 6: Final answer
    x = 6,864.89

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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.