Home / 7,999.34-11,974.41-5,220.03

Finding the Fourth Proportional to 7,999.34, 11,974.41 and 5,220.03

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Solution

The fourth proportional to 7,999.34, 11,974.41 and 5,220.03 is: 7,813.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.34 : 11,974.41 = 5,220.03 : x
  2. Step 2: Convert to fraction form
    7,999.34/11,974.41 = 5,220.03/x
  3. Step 3: Cross multiply
    7,999.34x = 11,974.41 × 5,220.03
  4. Step 4: Simplify right side
    7,999.34x = 62,506,779.43
  5. Step 5: Solve for x
    x = 62,506,779.43/7,999.34
  6. Step 6: Final answer
    x = 7,813.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.