Home / 13,110.74-18,091.47-7,367.28

Finding the Fourth Proportional to 13,110.74, 18,091.47 and 7,367.28

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Solution

The fourth proportional to 13,110.74, 18,091.47 and 7,367.28 is: 10,166.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.74 : 18,091.47 = 7,367.28 : x
  2. Step 2: Convert to fraction form
    13,110.74/18,091.47 = 7,367.28/x
  3. Step 3: Cross multiply
    13,110.74x = 18,091.47 × 7,367.28
  4. Step 4: Simplify right side
    13,110.74x = 133,284,925.10
  5. Step 5: Solve for x
    x = 133,284,925.10/13,110.74
  6. Step 6: Final answer
    x = 10,166.09

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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.