Home / 14,251.37-21,378.47-11,643.57

Finding the Fourth Proportional to 14,251.37, 21,378.47 and 11,643.57

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Solution

The fourth proportional to 14,251.37, 21,378.47 and 11,643.57 is: 17,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.37 : 21,378.47 = 11,643.57 : x
  2. Step 2: Convert to fraction form
    14,251.37/21,378.47 = 11,643.57/x
  3. Step 3: Cross multiply
    14,251.37x = 21,378.47 × 11,643.57
  4. Step 4: Simplify right side
    14,251.37x = 248,921,653.72
  5. Step 5: Solve for x
    x = 248,921,653.72/14,251.37
  6. Step 6: Final answer
    x = 17,466.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.