Home / 14,314.82-19,731.60-11,285

Finding the Fourth Proportional to 14,314.82, 19,731.60 and 11,285

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Solution

The fourth proportional to 14,314.82, 19,731.60 and 11,285 is: 15,555.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,314.82 : 19,731.60 = 11,285 : x
  2. Step 2: Convert to fraction form
    14,314.82/19,731.60 = 11,285/x
  3. Step 3: Cross multiply
    14,314.82x = 19,731.60 × 11,285
  4. Step 4: Simplify right side
    14,314.82x = 222,671,106.00
  5. Step 5: Solve for x
    x = 222,671,106.00/14,314.82
  6. Step 6: Final answer
    x = 15,555.29

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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.