Home / 12,059.90-16,631.56-8,276.40

Finding the Fourth Proportional to 12,059.90, 16,631.56 and 8,276.40

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Solution

The fourth proportional to 12,059.90, 16,631.56 and 8,276.40 is: 11,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,059.90 : 16,631.56 = 8,276.40 : x
  2. Step 2: Convert to fraction form
    12,059.90/16,631.56 = 8,276.40/x
  3. Step 3: Cross multiply
    12,059.90x = 16,631.56 × 8,276.40
  4. Step 4: Simplify right side
    12,059.90x = 137,649,443.18
  5. Step 5: Solve for x
    x = 137,649,443.18/12,059.90
  6. Step 6: Final answer
    x = 11,413.81

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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.