Home / 13,153.67-19,730.54-4,388.61

Finding the Fourth Proportional to 13,153.67, 19,730.54 and 4,388.61

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Solution

The fourth proportional to 13,153.67, 19,730.54 and 4,388.61 is: 6,582.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.67 : 19,730.54 = 4,388.61 : x
  2. Step 2: Convert to fraction form
    13,153.67/19,730.54 = 4,388.61/x
  3. Step 3: Cross multiply
    13,153.67x = 19,730.54 × 4,388.61
  4. Step 4: Simplify right side
    13,153.67x = 86,589,705.42
  5. Step 5: Solve for x
    x = 86,589,705.42/13,153.67
  6. Step 6: Final answer
    x = 6,582.93

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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.