Home / 13,148.16-19,724.16-4,381.44

Finding the Fourth Proportional to 13,148.16, 19,724.16 and 4,381.44

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Solution

The fourth proportional to 13,148.16, 19,724.16 and 4,381.44 is: 6,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.16 : 19,724.16 = 4,381.44 : x
  2. Step 2: Convert to fraction form
    13,148.16/19,724.16 = 4,381.44/x
  3. Step 3: Cross multiply
    13,148.16x = 19,724.16 × 4,381.44
  4. Step 4: Simplify right side
    13,148.16x = 86,420,223.59
  5. Step 5: Solve for x
    x = 86,420,223.59/13,148.16
  6. Step 6: Final answer
    x = 6,572.80

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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.