Home / 13,079.03-18,050.79-8,376.98

Finding the Fourth Proportional to 13,079.03, 18,050.79 and 8,376.98

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Solution

The fourth proportional to 13,079.03, 18,050.79 and 8,376.98 is: 11,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.03 : 18,050.79 = 8,376.98 : x
  2. Step 2: Convert to fraction form
    13,079.03/18,050.79 = 8,376.98/x
  3. Step 3: Cross multiply
    13,079.03x = 18,050.79 × 8,376.98
  4. Step 4: Simplify right side
    13,079.03x = 151,211,016.56
  5. Step 5: Solve for x
    x = 151,211,016.56/13,079.03
  6. Step 6: Final answer
    x = 11,561.34

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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.