Home / 13,103.64-18,076.74-8,065.80

Finding the Fourth Proportional to 13,103.64, 18,076.74 and 8,065.80

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Solution

The fourth proportional to 13,103.64, 18,076.74 and 8,065.80 is: 11,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.64 : 18,076.74 = 8,065.80 : x
  2. Step 2: Convert to fraction form
    13,103.64/18,076.74 = 8,065.80/x
  3. Step 3: Cross multiply
    13,103.64x = 18,076.74 × 8,065.80
  4. Step 4: Simplify right side
    13,103.64x = 145,803,369.49
  5. Step 5: Solve for x
    x = 145,803,369.49/13,103.64
  6. Step 6: Final answer
    x = 11,126.94

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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.