Home / 15,271.90-21,074.23-8,983.06

Finding the Fourth Proportional to 15,271.90, 21,074.23 and 8,983.06

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Solution

The fourth proportional to 15,271.90, 21,074.23 and 8,983.06 is: 12,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.90 : 21,074.23 = 8,983.06 : x
  2. Step 2: Convert to fraction form
    15,271.90/21,074.23 = 8,983.06/x
  3. Step 3: Cross multiply
    15,271.90x = 21,074.23 × 8,983.06
  4. Step 4: Simplify right side
    15,271.90x = 189,311,072.54
  5. Step 5: Solve for x
    x = 189,311,072.54/15,271.90
  6. Step 6: Final answer
    x = 12,396.04

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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.