Home / 13,958.50-21,030.86-12,625.82

Finding the Fourth Proportional to 13,958.50, 21,030.86 and 12,625.82

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Solution

The fourth proportional to 13,958.50, 21,030.86 and 12,625.82 is: 19,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.50 : 21,030.86 = 12,625.82 : x
  2. Step 2: Convert to fraction form
    13,958.50/21,030.86 = 12,625.82/x
  3. Step 3: Cross multiply
    13,958.50x = 21,030.86 × 12,625.82
  4. Step 4: Simplify right side
    13,958.50x = 265,531,852.81
  5. Step 5: Solve for x
    x = 265,531,852.81/13,958.50
  6. Step 6: Final answer
    x = 19,022.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.