Home / 6,972.99-9,623.51-3,989.25

Finding the Fourth Proportional to 6,972.99, 9,623.51 and 3,989.25

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Solution

The fourth proportional to 6,972.99, 9,623.51 and 3,989.25 is: 5,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.99 : 9,623.51 = 3,989.25 : x
  2. Step 2: Convert to fraction form
    6,972.99/9,623.51 = 3,989.25/x
  3. Step 3: Cross multiply
    6,972.99x = 9,623.51 × 3,989.25
  4. Step 4: Simplify right side
    6,972.99x = 38,390,582.28
  5. Step 5: Solve for x
    x = 38,390,582.28/6,972.99
  6. Step 6: Final answer
    x = 5,505.62

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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.