Home / 10,399.60-14,347.36-6,413.80

Finding the Fourth Proportional to 10,399.60, 14,347.36 and 6,413.80

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Solution

The fourth proportional to 10,399.60, 14,347.36 and 6,413.80 is: 8,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.60 : 14,347.36 = 6,413.80 : x
  2. Step 2: Convert to fraction form
    10,399.60/14,347.36 = 6,413.80/x
  3. Step 3: Cross multiply
    10,399.60x = 14,347.36 × 6,413.80
  4. Step 4: Simplify right side
    10,399.60x = 92,021,097.57
  5. Step 5: Solve for x
    x = 92,021,097.57/10,399.60
  6. Step 6: Final answer
    x = 8,848.52

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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.