Home / 12,399.16-18,598.74-3,165.16

Finding the Fourth Proportional to 12,399.16, 18,598.74 and 3,165.16

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Solution

The fourth proportional to 12,399.16, 18,598.74 and 3,165.16 is: 4,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.16 : 18,598.74 = 3,165.16 : x
  2. Step 2: Convert to fraction form
    12,399.16/18,598.74 = 3,165.16/x
  3. Step 3: Cross multiply
    12,399.16x = 18,598.74 × 3,165.16
  4. Step 4: Simplify right side
    12,399.16x = 58,867,987.90
  5. Step 5: Solve for x
    x = 58,867,987.90/12,399.16
  6. Step 6: Final answer
    x = 4,747.74

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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.