Home / 13,866.72-19,126.80-9,382.56

Finding the Fourth Proportional to 13,866.72, 19,126.80 and 9,382.56

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Solution

The fourth proportional to 13,866.72, 19,126.80 and 9,382.56 is: 12,941.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.72 : 19,126.80 = 9,382.56 : x
  2. Step 2: Convert to fraction form
    13,866.72/19,126.80 = 9,382.56/x
  3. Step 3: Cross multiply
    13,866.72x = 19,126.80 × 9,382.56
  4. Step 4: Simplify right side
    13,866.72x = 179,458,348.61
  5. Step 5: Solve for x
    x = 179,458,348.61/13,866.72
  6. Step 6: Final answer
    x = 12,941.66

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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.