Home / 13,344.21-18,413.10-7,676.78

Finding the Fourth Proportional to 13,344.21, 18,413.10 and 7,676.78

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Solution

The fourth proportional to 13,344.21, 18,413.10 and 7,676.78 is: 10,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.21 : 18,413.10 = 7,676.78 : x
  2. Step 2: Convert to fraction form
    13,344.21/18,413.10 = 7,676.78/x
  3. Step 3: Cross multiply
    13,344.21x = 18,413.10 × 7,676.78
  4. Step 4: Simplify right side
    13,344.21x = 141,353,225.75
  5. Step 5: Solve for x
    x = 141,353,225.75/13,344.21
  6. Step 6: Final answer
    x = 10,592.85

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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.