Home / 12,077.64-16,670.07-8,541.99

Finding the Fourth Proportional to 12,077.64, 16,670.07 and 8,541.99

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Solution

The fourth proportional to 12,077.64, 16,670.07 and 8,541.99 is: 11,790.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.64 : 16,670.07 = 8,541.99 : x
  2. Step 2: Convert to fraction form
    12,077.64/16,670.07 = 8,541.99/x
  3. Step 3: Cross multiply
    12,077.64x = 16,670.07 × 8,541.99
  4. Step 4: Simplify right side
    12,077.64x = 142,395,571.24
  5. Step 5: Solve for x
    x = 142,395,571.24/12,077.64
  6. Step 6: Final answer
    x = 11,790.02

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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.