Home / 8,000.10-11,990.43-4,870.26

Finding the Fourth Proportional to 8,000.10, 11,990.43 and 4,870.26

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Solution

The fourth proportional to 8,000.10, 11,990.43 and 4,870.26 is: 7,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.10 : 11,990.43 = 4,870.26 : x
  2. Step 2: Convert to fraction form
    8,000.10/11,990.43 = 4,870.26/x
  3. Step 3: Cross multiply
    8,000.10x = 11,990.43 × 4,870.26
  4. Step 4: Simplify right side
    8,000.10x = 58,396,511.61
  5. Step 5: Solve for x
    x = 58,396,511.61/8,000.10
  6. Step 6: Final answer
    x = 7,299.47

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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.