Home / 13,763.28-18,983.65-8,461.02

Finding the Fourth Proportional to 13,763.28, 18,983.65 and 8,461.02

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Solution

The fourth proportional to 13,763.28, 18,983.65 and 8,461.02 is: 11,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.28 : 18,983.65 = 8,461.02 : x
  2. Step 2: Convert to fraction form
    13,763.28/18,983.65 = 8,461.02/x
  3. Step 3: Cross multiply
    13,763.28x = 18,983.65 × 8,461.02
  4. Step 4: Simplify right side
    13,763.28x = 160,621,042.32
  5. Step 5: Solve for x
    x = 160,621,042.32/13,763.28
  6. Step 6: Final answer
    x = 11,670.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.