Home / 13,257.79-19,890.06-3,898.14

Finding the Fourth Proportional to 13,257.79, 19,890.06 and 3,898.14

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Solution

The fourth proportional to 13,257.79, 19,890.06 and 3,898.14 is: 5,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.79 : 19,890.06 = 3,898.14 : x
  2. Step 2: Convert to fraction form
    13,257.79/19,890.06 = 3,898.14/x
  3. Step 3: Cross multiply
    13,257.79x = 19,890.06 × 3,898.14
  4. Step 4: Simplify right side
    13,257.79x = 77,534,238.49
  5. Step 5: Solve for x
    x = 77,534,238.49/13,257.79
  6. Step 6: Final answer
    x = 5,848.20

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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.