Home / 6,973.31-9,623.74-3,990.12

Finding the Fourth Proportional to 6,973.31, 9,623.74 and 3,990.12

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Solution

The fourth proportional to 6,973.31, 9,623.74 and 3,990.12 is: 5,506.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,973.31 : 9,623.74 = 3,990.12 : x
  2. Step 2: Convert to fraction form
    6,973.31/9,623.74 = 3,990.12/x
  3. Step 3: Cross multiply
    6,973.31x = 9,623.74 × 3,990.12
  4. Step 4: Simplify right side
    6,973.31x = 38,399,877.45
  5. Step 5: Solve for x
    x = 38,399,877.45/6,973.31
  6. Step 6: Final answer
    x = 5,506.69

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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.