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Finding the Fourth Proportional to 7,999.16, 12,000.51 and 3,068.80

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Solution

The fourth proportional to 7,999.16, 12,000.51 and 3,068.80 is: 4,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.16 : 12,000.51 = 3,068.80 : x
  2. Step 2: Convert to fraction form
    7,999.16/12,000.51 = 3,068.80/x
  3. Step 3: Cross multiply
    7,999.16x = 12,000.51 × 3,068.80
  4. Step 4: Simplify right side
    7,999.16x = 36,827,135.09
  5. Step 5: Solve for x
    x = 36,827,135.09/7,999.16
  6. Step 6: Final answer
    x = 4,603.88

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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.