Home / 13,947.93-20,916.63-5,625.81

Finding the Fourth Proportional to 13,947.93, 20,916.63 and 5,625.81

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Solution

The fourth proportional to 13,947.93, 20,916.63 and 5,625.81 is: 8,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.93 : 20,916.63 = 5,625.81 : x
  2. Step 2: Convert to fraction form
    13,947.93/20,916.63 = 5,625.81/x
  3. Step 3: Cross multiply
    13,947.93x = 20,916.63 × 5,625.81
  4. Step 4: Simplify right side
    13,947.93x = 117,672,986.22
  5. Step 5: Solve for x
    x = 117,672,986.22/13,947.93
  6. Step 6: Final answer
    x = 8,436.59

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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.