Home / 13,153.26-19,731.24-4,385.82

Finding the Fourth Proportional to 13,153.26, 19,731.24 and 4,385.82

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Solution

The fourth proportional to 13,153.26, 19,731.24 and 4,385.82 is: 6,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.26 : 19,731.24 = 4,385.82 : x
  2. Step 2: Convert to fraction form
    13,153.26/19,731.24 = 4,385.82/x
  3. Step 3: Cross multiply
    13,153.26x = 19,731.24 × 4,385.82
  4. Step 4: Simplify right side
    13,153.26x = 86,537,667.02
  5. Step 5: Solve for x
    x = 86,537,667.02/13,153.26
  6. Step 6: Final answer
    x = 6,579.18

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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.