Home / 12,923.78-19,374.11-6,256.51

Finding the Fourth Proportional to 12,923.78, 19,374.11 and 6,256.51

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Solution

The fourth proportional to 12,923.78, 19,374.11 and 6,256.51 is: 9,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,923.78 : 19,374.11 = 6,256.51 : x
  2. Step 2: Convert to fraction form
    12,923.78/19,374.11 = 6,256.51/x
  3. Step 3: Cross multiply
    12,923.78x = 19,374.11 × 6,256.51
  4. Step 4: Simplify right side
    12,923.78x = 121,214,184.80
  5. Step 5: Solve for x
    x = 121,214,184.80/12,923.78
  6. Step 6: Final answer
    x = 9,379.16

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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.