Home / 13,152.30-18,149.87-7,183.98

Finding the Fourth Proportional to 13,152.30, 18,149.87 and 7,183.98

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Solution

The fourth proportional to 13,152.30, 18,149.87 and 7,183.98 is: 9,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.30 : 18,149.87 = 7,183.98 : x
  2. Step 2: Convert to fraction form
    13,152.30/18,149.87 = 7,183.98/x
  3. Step 3: Cross multiply
    13,152.30x = 18,149.87 × 7,183.98
  4. Step 4: Simplify right side
    13,152.30x = 130,388,303.08
  5. Step 5: Solve for x
    x = 130,388,303.08/13,152.30
  6. Step 6: Final answer
    x = 9,913.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.