Home / 12,681.22-19,023.65-3,916.82

Finding the Fourth Proportional to 12,681.22, 19,023.65 and 3,916.82

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Solution

The fourth proportional to 12,681.22, 19,023.65 and 3,916.82 is: 5,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.22 : 19,023.65 = 3,916.82 : x
  2. Step 2: Convert to fraction form
    12,681.22/19,023.65 = 3,916.82/x
  3. Step 3: Cross multiply
    12,681.22x = 19,023.65 × 3,916.82
  4. Step 4: Simplify right side
    12,681.22x = 74,512,193.21
  5. Step 5: Solve for x
    x = 74,512,193.21/12,681.22
  6. Step 6: Final answer
    x = 5,875.79

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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.