Home / 13,153.15-19,730.76-4,388.06

Finding the Fourth Proportional to 13,153.15, 19,730.76 and 4,388.06

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Solution

The fourth proportional to 13,153.15, 19,730.76 and 4,388.06 is: 6,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.15 : 19,730.76 = 4,388.06 : x
  2. Step 2: Convert to fraction form
    13,153.15/19,730.76 = 4,388.06/x
  3. Step 3: Cross multiply
    13,153.15x = 19,730.76 × 4,388.06
  4. Step 4: Simplify right side
    13,153.15x = 86,579,638.13
  5. Step 5: Solve for x
    x = 86,579,638.13/13,153.15
  6. Step 6: Final answer
    x = 6,582.43

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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.