Home / 13,541.91-20,316.10-6,861.75

Finding the Fourth Proportional to 13,541.91, 20,316.10 and 6,861.75

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Solution

The fourth proportional to 13,541.91, 20,316.10 and 6,861.75 is: 10,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.91 : 20,316.10 = 6,861.75 : x
  2. Step 2: Convert to fraction form
    13,541.91/20,316.10 = 6,861.75/x
  3. Step 3: Cross multiply
    13,541.91x = 20,316.10 × 6,861.75
  4. Step 4: Simplify right side
    13,541.91x = 139,403,999.18
  5. Step 5: Solve for x
    x = 139,403,999.18/13,541.91
  6. Step 6: Final answer
    x = 10,294.26

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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.