Home / 13,566.06-18,720.24-7,516.11

Finding the Fourth Proportional to 13,566.06, 18,720.24 and 7,516.11

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Solution

The fourth proportional to 13,566.06, 18,720.24 and 7,516.11 is: 10,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.06 : 18,720.24 = 7,516.11 : x
  2. Step 2: Convert to fraction form
    13,566.06/18,720.24 = 7,516.11/x
  3. Step 3: Cross multiply
    13,566.06x = 18,720.24 × 7,516.11
  4. Step 4: Simplify right side
    13,566.06x = 140,703,383.07
  5. Step 5: Solve for x
    x = 140,703,383.07/13,566.06
  6. Step 6: Final answer
    x = 10,371.72

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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.