Home / 6,983.94-9,637.80-3,999.81

Finding the Fourth Proportional to 6,983.94, 9,637.80 and 3,999.81

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Solution

The fourth proportional to 6,983.94, 9,637.80 and 3,999.81 is: 5,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.94 : 9,637.80 = 3,999.81 : x
  2. Step 2: Convert to fraction form
    6,983.94/9,637.80 = 3,999.81/x
  3. Step 3: Cross multiply
    6,983.94x = 9,637.80 × 3,999.81
  4. Step 4: Simplify right side
    6,983.94x = 38,549,368.82
  5. Step 5: Solve for x
    x = 38,549,368.82/6,983.94
  6. Step 6: Final answer
    x = 5,519.72

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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.