Home / 10,990.49-16,485.50-2,670.55

Finding the Fourth Proportional to 10,990.49, 16,485.50 and 2,670.55

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Solution

The fourth proportional to 10,990.49, 16,485.50 and 2,670.55 is: 4,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.49 : 16,485.50 = 2,670.55 : x
  2. Step 2: Convert to fraction form
    10,990.49/16,485.50 = 2,670.55/x
  3. Step 3: Cross multiply
    10,990.49x = 16,485.50 × 2,670.55
  4. Step 4: Simplify right side
    10,990.49x = 44,025,317.49
  5. Step 5: Solve for x
    x = 44,025,317.49/10,990.49
  6. Step 6: Final answer
    x = 4,005.77

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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.