Home / 7,983.56-11,005.90-5,618.36

Finding the Fourth Proportional to 7,983.56, 11,005.90 and 5,618.36

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Solution

The fourth proportional to 7,983.56, 11,005.90 and 5,618.36 is: 7,745.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.56 : 11,005.90 = 5,618.36 : x
  2. Step 2: Convert to fraction form
    7,983.56/11,005.90 = 5,618.36/x
  3. Step 3: Cross multiply
    7,983.56x = 11,005.90 × 5,618.36
  4. Step 4: Simplify right side
    7,983.56x = 61,835,108.32
  5. Step 5: Solve for x
    x = 61,835,108.32/7,983.56
  6. Step 6: Final answer
    x = 7,745.31

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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.