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Finding the Fourth Proportional to 7,999.04, 12,000.72 and 4,538.72

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Solution

The fourth proportional to 7,999.04, 12,000.72 and 4,538.72 is: 6,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.04 : 12,000.72 = 4,538.72 : x
  2. Step 2: Convert to fraction form
    7,999.04/12,000.72 = 4,538.72/x
  3. Step 3: Cross multiply
    7,999.04x = 12,000.72 × 4,538.72
  4. Step 4: Simplify right side
    7,999.04x = 54,467,907.88
  5. Step 5: Solve for x
    x = 54,467,907.88/7,999.04
  6. Step 6: Final answer
    x = 6,809.31

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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.