Home / 13,598.37-20,399.49-4,831.20

Finding the Fourth Proportional to 13,598.37, 20,399.49 and 4,831.20

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Solution

The fourth proportional to 13,598.37, 20,399.49 and 4,831.20 is: 7,247.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.37 : 20,399.49 = 4,831.20 : x
  2. Step 2: Convert to fraction form
    13,598.37/20,399.49 = 4,831.20/x
  3. Step 3: Cross multiply
    13,598.37x = 20,399.49 × 4,831.20
  4. Step 4: Simplify right side
    13,598.37x = 98,554,016.09
  5. Step 5: Solve for x
    x = 98,554,016.09/13,598.37
  6. Step 6: Final answer
    x = 7,247.49

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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.