Home / 13,141.03-18,136.95-7,836.19

Finding the Fourth Proportional to 13,141.03, 18,136.95 and 7,836.19

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Solution

The fourth proportional to 13,141.03, 18,136.95 and 7,836.19 is: 10,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.03 : 18,136.95 = 7,836.19 : x
  2. Step 2: Convert to fraction form
    13,141.03/18,136.95 = 7,836.19/x
  3. Step 3: Cross multiply
    13,141.03x = 18,136.95 × 7,836.19
  4. Step 4: Simplify right side
    13,141.03x = 142,124,495.54
  5. Step 5: Solve for x
    x = 142,124,495.54/13,141.03
  6. Step 6: Final answer
    x = 10,815.33

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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.