Home / 14,183.12-21,274.48-6,386.40

Finding the Fourth Proportional to 14,183.12, 21,274.48 and 6,386.40

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Solution

The fourth proportional to 14,183.12, 21,274.48 and 6,386.40 is: 9,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,183.12 : 21,274.48 = 6,386.40 : x
  2. Step 2: Convert to fraction form
    14,183.12/21,274.48 = 6,386.40/x
  3. Step 3: Cross multiply
    14,183.12x = 21,274.48 × 6,386.40
  4. Step 4: Simplify right side
    14,183.12x = 135,867,339.07
  5. Step 5: Solve for x
    x = 135,867,339.07/14,183.12
  6. Step 6: Final answer
    x = 9,579.51

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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.