Home / 12,927.14-17,841.11-7,890.29

Finding the Fourth Proportional to 12,927.14, 17,841.11 and 7,890.29

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Solution

The fourth proportional to 12,927.14, 17,841.11 and 7,890.29 is: 10,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.14 : 17,841.11 = 7,890.29 : x
  2. Step 2: Convert to fraction form
    12,927.14/17,841.11 = 7,890.29/x
  3. Step 3: Cross multiply
    12,927.14x = 17,841.11 × 7,890.29
  4. Step 4: Simplify right side
    12,927.14x = 140,771,413.03
  5. Step 5: Solve for x
    x = 140,771,413.03/12,927.14
  6. Step 6: Final answer
    x = 10,889.60

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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.