Home / 13,916.04-20,879.40-8,373.36

Finding the Fourth Proportional to 13,916.04, 20,879.40 and 8,373.36

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Solution

The fourth proportional to 13,916.04, 20,879.40 and 8,373.36 is: 12,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.04 : 20,879.40 = 8,373.36 : x
  2. Step 2: Convert to fraction form
    13,916.04/20,879.40 = 8,373.36/x
  3. Step 3: Cross multiply
    13,916.04x = 20,879.40 × 8,373.36
  4. Step 4: Simplify right side
    13,916.04x = 174,830,732.78
  5. Step 5: Solve for x
    x = 174,830,732.78/13,916.04
  6. Step 6: Final answer
    x = 12,563.25

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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.