Home / 8,982.99-12,376.26-6,621.03

Finding the Fourth Proportional to 8,982.99, 12,376.26 and 6,621.03

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Solution

The fourth proportional to 8,982.99, 12,376.26 and 6,621.03 is: 9,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.99 : 12,376.26 = 6,621.03 : x
  2. Step 2: Convert to fraction form
    8,982.99/12,376.26 = 6,621.03/x
  3. Step 3: Cross multiply
    8,982.99x = 12,376.26 × 6,621.03
  4. Step 4: Simplify right side
    8,982.99x = 81,943,588.75
  5. Step 5: Solve for x
    x = 81,943,588.75/8,982.99
  6. Step 6: Final answer
    x = 9,122.08

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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.