Home / 15,812.36-21,831.32-10,149.24

Finding the Fourth Proportional to 15,812.36, 21,831.32 and 10,149.24

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Solution

The fourth proportional to 15,812.36, 21,831.32 and 10,149.24 is: 14,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.36 : 21,831.32 = 10,149.24 : x
  2. Step 2: Convert to fraction form
    15,812.36/21,831.32 = 10,149.24/x
  3. Step 3: Cross multiply
    15,812.36x = 21,831.32 × 10,149.24
  4. Step 4: Simplify right side
    15,812.36x = 221,571,306.20
  5. Step 5: Solve for x
    x = 221,571,306.20/15,812.36
  6. Step 6: Final answer
    x = 14,012.54

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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.