Home / 8,713.98-12,027.21-5,730.09

Finding the Fourth Proportional to 8,713.98, 12,027.21 and 5,730.09

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Solution

The fourth proportional to 8,713.98, 12,027.21 and 5,730.09 is: 7,908.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.98 : 12,027.21 = 5,730.09 : x
  2. Step 2: Convert to fraction form
    8,713.98/12,027.21 = 5,730.09/x
  3. Step 3: Cross multiply
    8,713.98x = 12,027.21 × 5,730.09
  4. Step 4: Simplify right side
    8,713.98x = 68,916,995.75
  5. Step 5: Solve for x
    x = 68,916,995.75/8,713.98
  6. Step 6: Final answer
    x = 7,908.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.