Home / 13,455.48-20,183.06-4,690.37

Finding the Fourth Proportional to 13,455.48, 20,183.06 and 4,690.37

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Solution

The fourth proportional to 13,455.48, 20,183.06 and 4,690.37 is: 7,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.48 : 20,183.06 = 4,690.37 : x
  2. Step 2: Convert to fraction form
    13,455.48/20,183.06 = 4,690.37/x
  3. Step 3: Cross multiply
    13,455.48x = 20,183.06 × 4,690.37
  4. Step 4: Simplify right side
    13,455.48x = 94,666,019.13
  5. Step 5: Solve for x
    x = 94,666,019.13/13,455.48
  6. Step 6: Final answer
    x = 7,035.50

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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.