Home / 13,072.26-18,039.80-7,103.98

Finding the Fourth Proportional to 13,072.26, 18,039.80 and 7,103.98

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Solution

The fourth proportional to 13,072.26, 18,039.80 and 7,103.98 is: 9,803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.26 : 18,039.80 = 7,103.98 : x
  2. Step 2: Convert to fraction form
    13,072.26/18,039.80 = 7,103.98/x
  3. Step 3: Cross multiply
    13,072.26x = 18,039.80 × 7,103.98
  4. Step 4: Simplify right side
    13,072.26x = 128,154,378.40
  5. Step 5: Solve for x
    x = 128,154,378.40/13,072.26
  6. Step 6: Final answer
    x = 9,803.54

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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.