Home / 11,423.60-17,135.40-9,609.20

Finding the Fourth Proportional to 11,423.60, 17,135.40 and 9,609.20

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Solution

The fourth proportional to 11,423.60, 17,135.40 and 9,609.20 is: 14,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.60 : 17,135.40 = 9,609.20 : x
  2. Step 2: Convert to fraction form
    11,423.60/17,135.40 = 9,609.20/x
  3. Step 3: Cross multiply
    11,423.60x = 17,135.40 × 9,609.20
  4. Step 4: Simplify right side
    11,423.60x = 164,657,485.68
  5. Step 5: Solve for x
    x = 164,657,485.68/11,423.60
  6. Step 6: Final answer
    x = 14,413.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.