Home / 18,315.48-27,475.38-5,831.12

Finding the Fourth Proportional to 18,315.48, 27,475.38 and 5,831.12

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Solution

The fourth proportional to 18,315.48, 27,475.38 and 5,831.12 is: 8,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.48 : 27,475.38 = 5,831.12 : x
  2. Step 2: Convert to fraction form
    18,315.48/27,475.38 = 5,831.12/x
  3. Step 3: Cross multiply
    18,315.48x = 27,475.38 × 5,831.12
  4. Step 4: Simplify right side
    18,315.48x = 160,212,237.83
  5. Step 5: Solve for x
    x = 160,212,237.83/18,315.48
  6. Step 6: Final answer
    x = 8,747.37

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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.