Home / 13,152.02-18,149.76-7,183.68

Finding the Fourth Proportional to 13,152.02, 18,149.76 and 7,183.68

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Solution

The fourth proportional to 13,152.02, 18,149.76 and 7,183.68 is: 9,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.02 : 18,149.76 = 7,183.68 : x
  2. Step 2: Convert to fraction form
    13,152.02/18,149.76 = 7,183.68/x
  3. Step 3: Cross multiply
    13,152.02x = 18,149.76 × 7,183.68
  4. Step 4: Simplify right side
    13,152.02x = 130,382,067.92
  5. Step 5: Solve for x
    x = 130,382,067.92/13,152.02
  6. Step 6: Final answer
    x = 9,913.46

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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.