Home / 10,728.81-16,090.23-5,979.12

Finding the Fourth Proportional to 10,728.81, 16,090.23 and 5,979.12

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Solution

The fourth proportional to 10,728.81, 16,090.23 and 5,979.12 is: 8,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.81 : 16,090.23 = 5,979.12 : x
  2. Step 2: Convert to fraction form
    10,728.81/16,090.23 = 5,979.12/x
  3. Step 3: Cross multiply
    10,728.81x = 16,090.23 × 5,979.12
  4. Step 4: Simplify right side
    10,728.81x = 96,205,480.21
  5. Step 5: Solve for x
    x = 96,205,480.21/10,728.81
  6. Step 6: Final answer
    x = 8,967.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.