Home / 18,638.06-27,943.85-8,772.26

Finding the Fourth Proportional to 18,638.06, 27,943.85 and 8,772.26

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Solution

The fourth proportional to 18,638.06, 27,943.85 and 8,772.26 is: 13,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.06 : 27,943.85 = 8,772.26 : x
  2. Step 2: Convert to fraction form
    18,638.06/27,943.85 = 8,772.26/x
  3. Step 3: Cross multiply
    18,638.06x = 27,943.85 × 8,772.26
  4. Step 4: Simplify right side
    18,638.06x = 245,130,599.81
  5. Step 5: Solve for x
    x = 245,130,599.81/18,638.06
  6. Step 6: Final answer
    x = 13,152.16

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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.