Home / 12,156.90-16,753.61-8,794.01

Finding the Fourth Proportional to 12,156.90, 16,753.61 and 8,794.01

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Solution

The fourth proportional to 12,156.90, 16,753.61 and 8,794.01 is: 12,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,156.90 : 16,753.61 = 8,794.01 : x
  2. Step 2: Convert to fraction form
    12,156.90/16,753.61 = 8,794.01/x
  3. Step 3: Cross multiply
    12,156.90x = 16,753.61 × 8,794.01
  4. Step 4: Simplify right side
    12,156.90x = 147,331,413.88
  5. Step 5: Solve for x
    x = 147,331,413.88/12,156.90
  6. Step 6: Final answer
    x = 12,119.16

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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.