Home / 13,916.22-20,876.49-4,681.50

Finding the Fourth Proportional to 13,916.22, 20,876.49 and 4,681.50

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Solution

The fourth proportional to 13,916.22, 20,876.49 and 4,681.50 is: 7,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.22 : 20,876.49 = 4,681.50 : x
  2. Step 2: Convert to fraction form
    13,916.22/20,876.49 = 4,681.50/x
  3. Step 3: Cross multiply
    13,916.22x = 20,876.49 × 4,681.50
  4. Step 4: Simplify right side
    13,916.22x = 97,733,287.94
  5. Step 5: Solve for x
    x = 97,733,287.94/13,916.22
  6. Step 6: Final answer
    x = 7,022.98

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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.