Home / 13,940.73-19,235.70-7,890.93

Finding the Fourth Proportional to 13,940.73, 19,235.70 and 7,890.93

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Solution

The fourth proportional to 13,940.73, 19,235.70 and 7,890.93 is: 10,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.73 : 19,235.70 = 7,890.93 : x
  2. Step 2: Convert to fraction form
    13,940.73/19,235.70 = 7,890.93/x
  3. Step 3: Cross multiply
    13,940.73x = 19,235.70 × 7,890.93
  4. Step 4: Simplify right side
    13,940.73x = 151,787,562.20
  5. Step 5: Solve for x
    x = 151,787,562.20/13,940.73
  6. Step 6: Final answer
    x = 10,888.06

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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.