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Finding the Fourth Proportional to 7,999.90, 11,995.81 and 4,669.29

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Solution

The fourth proportional to 7,999.90, 11,995.81 and 4,669.29 is: 7,001.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.90 : 11,995.81 = 4,669.29 : x
  2. Step 2: Convert to fraction form
    7,999.90/11,995.81 = 4,669.29/x
  3. Step 3: Cross multiply
    7,999.90x = 11,995.81 × 4,669.29
  4. Step 4: Simplify right side
    7,999.90x = 56,011,904.00
  5. Step 5: Solve for x
    x = 56,011,904.00/7,999.90
  6. Step 6: Final answer
    x = 7,001.58

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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.