Home / 13,516.66-18,651.02-8,202.25

Finding the Fourth Proportional to 13,516.66, 18,651.02 and 8,202.25

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Solution

The fourth proportional to 13,516.66, 18,651.02 and 8,202.25 is: 11,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.66 : 18,651.02 = 8,202.25 : x
  2. Step 2: Convert to fraction form
    13,516.66/18,651.02 = 8,202.25/x
  3. Step 3: Cross multiply
    13,516.66x = 18,651.02 × 8,202.25
  4. Step 4: Simplify right side
    13,516.66x = 152,980,328.80
  5. Step 5: Solve for x
    x = 152,980,328.80/13,516.66
  6. Step 6: Final answer
    x = 11,317.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.