Home / 9,125.20-13,621.80-8,018.03

Finding the Fourth Proportional to 9,125.20, 13,621.80 and 8,018.03

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Solution

The fourth proportional to 9,125.20, 13,621.80 and 8,018.03 is: 11,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.20 : 13,621.80 = 8,018.03 : x
  2. Step 2: Convert to fraction form
    9,125.20/13,621.80 = 8,018.03/x
  3. Step 3: Cross multiply
    9,125.20x = 13,621.80 × 8,018.03
  4. Step 4: Simplify right side
    9,125.20x = 109,220,015.06
  5. Step 5: Solve for x
    x = 109,220,015.06/9,125.20
  6. Step 6: Final answer
    x = 11,969.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.