Home / 12,720.51-19,073.34-4,396.95

Finding the Fourth Proportional to 12,720.51, 19,073.34 and 4,396.95

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Solution

The fourth proportional to 12,720.51, 19,073.34 and 4,396.95 is: 6,592.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.51 : 19,073.34 = 4,396.95 : x
  2. Step 2: Convert to fraction form
    12,720.51/19,073.34 = 4,396.95/x
  3. Step 3: Cross multiply
    12,720.51x = 19,073.34 × 4,396.95
  4. Step 4: Simplify right side
    12,720.51x = 83,864,522.31
  5. Step 5: Solve for x
    x = 83,864,522.31/12,720.51
  6. Step 6: Final answer
    x = 6,592.86

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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.