Home / 8,746.63-13,111.75-3,812.21

Finding the Fourth Proportional to 8,746.63, 13,111.75 and 3,812.21

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Solution

The fourth proportional to 8,746.63, 13,111.75 and 3,812.21 is: 5,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.63 : 13,111.75 = 3,812.21 : x
  2. Step 2: Convert to fraction form
    8,746.63/13,111.75 = 3,812.21/x
  3. Step 3: Cross multiply
    8,746.63x = 13,111.75 × 3,812.21
  4. Step 4: Simplify right side
    8,746.63x = 49,984,795.87
  5. Step 5: Solve for x
    x = 49,984,795.87/8,746.63
  6. Step 6: Final answer
    x = 5,714.75

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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.