Home / 8,726.29-13,090.64-2,801.78

Finding the Fourth Proportional to 8,726.29, 13,090.64 and 2,801.78

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Solution

The fourth proportional to 8,726.29, 13,090.64 and 2,801.78 is: 4,203.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.29 : 13,090.64 = 2,801.78 : x
  2. Step 2: Convert to fraction form
    8,726.29/13,090.64 = 2,801.78/x
  3. Step 3: Cross multiply
    8,726.29x = 13,090.64 × 2,801.78
  4. Step 4: Simplify right side
    8,726.29x = 36,677,093.34
  5. Step 5: Solve for x
    x = 36,677,093.34/8,726.29
  6. Step 6: Final answer
    x = 4,203.06

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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.