Home / 14,185.19-21,279.24-5,427.47

Finding the Fourth Proportional to 14,185.19, 21,279.24 and 5,427.47

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Solution

The fourth proportional to 14,185.19, 21,279.24 and 5,427.47 is: 8,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185.19 : 21,279.24 = 5,427.47 : x
  2. Step 2: Convert to fraction form
    14,185.19/21,279.24 = 5,427.47/x
  3. Step 3: Cross multiply
    14,185.19x = 21,279.24 × 5,427.47
  4. Step 4: Simplify right side
    14,185.19x = 115,492,436.72
  5. Step 5: Solve for x
    x = 115,492,436.72/14,185.19
  6. Step 6: Final answer
    x = 8,141.76

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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.