Home / 13,551.31-20,328.66-4,664.35

Finding the Fourth Proportional to 13,551.31, 20,328.66 and 4,664.35

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Solution

The fourth proportional to 13,551.31, 20,328.66 and 4,664.35 is: 6,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.31 : 20,328.66 = 4,664.35 : x
  2. Step 2: Convert to fraction form
    13,551.31/20,328.66 = 4,664.35/x
  3. Step 3: Cross multiply
    13,551.31x = 20,328.66 × 4,664.35
  4. Step 4: Simplify right side
    13,551.31x = 94,819,985.27
  5. Step 5: Solve for x
    x = 94,819,985.27/13,551.31
  6. Step 6: Final answer
    x = 6,997.11

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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.