Home / 15,816.88-21,831.84-10,443.24

Finding the Fourth Proportional to 15,816.88, 21,831.84 and 10,443.24

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Solution

The fourth proportional to 15,816.88, 21,831.84 and 10,443.24 is: 14,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.88 : 21,831.84 = 10,443.24 : x
  2. Step 2: Convert to fraction form
    15,816.88/21,831.84 = 10,443.24/x
  3. Step 3: Cross multiply
    15,816.88x = 21,831.84 × 10,443.24
  4. Step 4: Simplify right side
    15,816.88x = 227,995,144.76
  5. Step 5: Solve for x
    x = 227,995,144.76/15,816.88
  6. Step 6: Final answer
    x = 14,414.67

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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.