Home / 13,156.16-19,720.80-6,236.48

Finding the Fourth Proportional to 13,156.16, 19,720.80 and 6,236.48

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Solution

The fourth proportional to 13,156.16, 19,720.80 and 6,236.48 is: 9,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.16 : 19,720.80 = 6,236.48 : x
  2. Step 2: Convert to fraction form
    13,156.16/19,720.80 = 6,236.48/x
  3. Step 3: Cross multiply
    13,156.16x = 19,720.80 × 6,236.48
  4. Step 4: Simplify right side
    13,156.16x = 122,988,374.78
  5. Step 5: Solve for x
    x = 122,988,374.78/13,156.16
  6. Step 6: Final answer
    x = 9,348.35

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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.