Home / 10,399.79-15,599.66-4,161.38

Finding the Fourth Proportional to 10,399.79, 15,599.66 and 4,161.38

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Solution

The fourth proportional to 10,399.79, 15,599.66 and 4,161.38 is: 6,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.79 : 15,599.66 = 4,161.38 : x
  2. Step 2: Convert to fraction form
    10,399.79/15,599.66 = 4,161.38/x
  3. Step 3: Cross multiply
    10,399.79x = 15,599.66 × 4,161.38
  4. Step 4: Simplify right side
    10,399.79x = 64,916,014.33
  5. Step 5: Solve for x
    x = 64,916,014.33/10,399.79
  6. Step 6: Final answer
    x = 6,242.05

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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.