Home / 10,003.79-15,005.67-3,078.29

Finding the Fourth Proportional to 10,003.79, 15,005.67 and 3,078.29

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Solution

The fourth proportional to 10,003.79, 15,005.67 and 3,078.29 is: 4,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,003.79 : 15,005.67 = 3,078.29 : x
  2. Step 2: Convert to fraction form
    10,003.79/15,005.67 = 3,078.29/x
  3. Step 3: Cross multiply
    10,003.79x = 15,005.67 × 3,078.29
  4. Step 4: Simplify right side
    10,003.79x = 46,191,728.88
  5. Step 5: Solve for x
    x = 46,191,728.88/10,003.79
  6. Step 6: Final answer
    x = 4,617.43

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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.