Home / 12,858.48-19,289.94-4,424.58

Finding the Fourth Proportional to 12,858.48, 19,289.94 and 4,424.58

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Solution

The fourth proportional to 12,858.48, 19,289.94 and 4,424.58 is: 6,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.48 : 19,289.94 = 4,424.58 : x
  2. Step 2: Convert to fraction form
    12,858.48/19,289.94 = 4,424.58/x
  3. Step 3: Cross multiply
    12,858.48x = 19,289.94 × 4,424.58
  4. Step 4: Simplify right side
    12,858.48x = 85,349,882.73
  5. Step 5: Solve for x
    x = 85,349,882.73/12,858.48
  6. Step 6: Final answer
    x = 6,637.63

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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.