Home / 13,650.26-18,836.69-7,681.77

Finding the Fourth Proportional to 13,650.26, 18,836.69 and 7,681.77

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Solution

The fourth proportional to 13,650.26, 18,836.69 and 7,681.77 is: 10,600.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.26 : 18,836.69 = 7,681.77 : x
  2. Step 2: Convert to fraction form
    13,650.26/18,836.69 = 7,681.77/x
  3. Step 3: Cross multiply
    13,650.26x = 18,836.69 × 7,681.77
  4. Step 4: Simplify right side
    13,650.26x = 144,699,081.73
  5. Step 5: Solve for x
    x = 144,699,081.73/13,650.26
  6. Step 6: Final answer
    x = 10,600.47

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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.