Home / 13,156.56-19,743-5,365.36

Finding the Fourth Proportional to 13,156.56, 19,743 and 5,365.36

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Solution

The fourth proportional to 13,156.56, 19,743 and 5,365.36 is: 8,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.56 : 19,743 = 5,365.36 : x
  2. Step 2: Convert to fraction form
    13,156.56/19,743 = 5,365.36/x
  3. Step 3: Cross multiply
    13,156.56x = 19,743 × 5,365.36
  4. Step 4: Simplify right side
    13,156.56x = 105,928,302.48
  5. Step 5: Solve for x
    x = 105,928,302.48/13,156.56
  6. Step 6: Final answer
    x = 8,051.37

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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.