Home / 7,728.30-10,665.14-4,371.15

Finding the Fourth Proportional to 7,728.30, 10,665.14 and 4,371.15

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Solution

The fourth proportional to 7,728.30, 10,665.14 and 4,371.15 is: 6,032.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.30 : 10,665.14 = 4,371.15 : x
  2. Step 2: Convert to fraction form
    7,728.30/10,665.14 = 4,371.15/x
  3. Step 3: Cross multiply
    7,728.30x = 10,665.14 × 4,371.15
  4. Step 4: Simplify right side
    7,728.30x = 46,618,904.86
  5. Step 5: Solve for x
    x = 46,618,904.86/7,728.30
  6. Step 6: Final answer
    x = 6,032.23

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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.