Home / 12,873.24-19,312.38-4,108.68

Finding the Fourth Proportional to 12,873.24, 19,312.38 and 4,108.68

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Solution

The fourth proportional to 12,873.24, 19,312.38 and 4,108.68 is: 6,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.24 : 19,312.38 = 4,108.68 : x
  2. Step 2: Convert to fraction form
    12,873.24/19,312.38 = 4,108.68/x
  3. Step 3: Cross multiply
    12,873.24x = 19,312.38 × 4,108.68
  4. Step 4: Simplify right side
    12,873.24x = 79,348,389.46
  5. Step 5: Solve for x
    x = 79,348,389.46/12,873.24
  6. Step 6: Final answer
    x = 6,163.82

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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.