Home / 13,576.83-20,457.75-11,165.66

Finding the Fourth Proportional to 13,576.83, 20,457.75 and 11,165.66

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Solution

The fourth proportional to 13,576.83, 20,457.75 and 11,165.66 is: 16,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.83 : 20,457.75 = 11,165.66 : x
  2. Step 2: Convert to fraction form
    13,576.83/20,457.75 = 11,165.66/x
  3. Step 3: Cross multiply
    13,576.83x = 20,457.75 × 11,165.66
  4. Step 4: Simplify right side
    13,576.83x = 228,424,280.87
  5. Step 5: Solve for x
    x = 228,424,280.87/13,576.83
  6. Step 6: Final answer
    x = 16,824.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.