Home / 13,051.88-19,586.72-5,261.28

Finding the Fourth Proportional to 13,051.88, 19,586.72 and 5,261.28

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Solution

The fourth proportional to 13,051.88, 19,586.72 and 5,261.28 is: 7,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.88 : 19,586.72 = 5,261.28 : x
  2. Step 2: Convert to fraction form
    13,051.88/19,586.72 = 5,261.28/x
  3. Step 3: Cross multiply
    13,051.88x = 19,586.72 × 5,261.28
  4. Step 4: Simplify right side
    13,051.88x = 103,051,218.20
  5. Step 5: Solve for x
    x = 103,051,218.20/13,051.88
  6. Step 6: Final answer
    x = 7,895.51

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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.