Home / 14,831.75-20,467.40-8,782.29

Finding the Fourth Proportional to 14,831.75, 20,467.40 and 8,782.29

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Solution

The fourth proportional to 14,831.75, 20,467.40 and 8,782.29 is: 12,119.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.75 : 20,467.40 = 8,782.29 : x
  2. Step 2: Convert to fraction form
    14,831.75/20,467.40 = 8,782.29/x
  3. Step 3: Cross multiply
    14,831.75x = 20,467.40 × 8,782.29
  4. Step 4: Simplify right side
    14,831.75x = 179,750,598.43
  5. Step 5: Solve for x
    x = 179,750,598.43/14,831.75
  6. Step 6: Final answer
    x = 12,119.32

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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.