Home / 13,455.71-20,183.66-4,690.63

Finding the Fourth Proportional to 13,455.71, 20,183.66 and 4,690.63

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Solution

The fourth proportional to 13,455.71, 20,183.66 and 4,690.63 is: 7,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.71 : 20,183.66 = 4,690.63 : x
  2. Step 2: Convert to fraction form
    13,455.71/20,183.66 = 4,690.63/x
  3. Step 3: Cross multiply
    13,455.71x = 20,183.66 × 4,690.63
  4. Step 4: Simplify right side
    13,455.71x = 94,674,081.11
  5. Step 5: Solve for x
    x = 94,674,081.11/13,455.71
  6. Step 6: Final answer
    x = 7,035.98

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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.