Home / 13,417.82-18,516.72-7,367.66

Finding the Fourth Proportional to 13,417.82, 18,516.72 and 7,367.66

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Solution

The fourth proportional to 13,417.82, 18,516.72 and 7,367.66 is: 10,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.82 : 18,516.72 = 7,367.66 : x
  2. Step 2: Convert to fraction form
    13,417.82/18,516.72 = 7,367.66/x
  3. Step 3: Cross multiply
    13,417.82x = 18,516.72 × 7,367.66
  4. Step 4: Simplify right side
    13,417.82x = 136,424,804.69
  5. Step 5: Solve for x
    x = 136,424,804.69/13,417.82
  6. Step 6: Final answer
    x = 10,167.44

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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.