Home / 6,518.13-8,985.06-3,995.56

Finding the Fourth Proportional to 6,518.13, 8,985.06 and 3,995.56

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Solution

The fourth proportional to 6,518.13, 8,985.06 and 3,995.56 is: 5,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.13 : 8,985.06 = 3,995.56 : x
  2. Step 2: Convert to fraction form
    6,518.13/8,985.06 = 3,995.56/x
  3. Step 3: Cross multiply
    6,518.13x = 8,985.06 × 3,995.56
  4. Step 4: Simplify right side
    6,518.13x = 35,900,346.33
  5. Step 5: Solve for x
    x = 35,900,346.33/6,518.13
  6. Step 6: Final answer
    x = 5,507.77

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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.