Home / 12,631.40-17,413.14-8,842.88

Finding the Fourth Proportional to 12,631.40, 17,413.14 and 8,842.88

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Solution

The fourth proportional to 12,631.40, 17,413.14 and 8,842.88 is: 12,190.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.40 : 17,413.14 = 8,842.88 : x
  2. Step 2: Convert to fraction form
    12,631.40/17,413.14 = 8,842.88/x
  3. Step 3: Cross multiply
    12,631.40x = 17,413.14 × 8,842.88
  4. Step 4: Simplify right side
    12,631.40x = 153,982,307.44
  5. Step 5: Solve for x
    x = 153,982,307.44/12,631.40
  6. Step 6: Final answer
    x = 12,190.44

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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.