Home / 11,319.60-16,971.24-7,612.68

Finding the Fourth Proportional to 11,319.60, 16,971.24 and 7,612.68

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Solution

The fourth proportional to 11,319.60, 16,971.24 and 7,612.68 is: 11,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.60 : 16,971.24 = 7,612.68 : x
  2. Step 2: Convert to fraction form
    11,319.60/16,971.24 = 7,612.68/x
  3. Step 3: Cross multiply
    11,319.60x = 16,971.24 × 7,612.68
  4. Step 4: Simplify right side
    11,319.60x = 129,196,619.32
  5. Step 5: Solve for x
    x = 129,196,619.32/11,319.60
  6. Step 6: Final answer
    x = 11,413.53

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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.