Home / 12,831.30-19,246.74-4,066.20

Finding the Fourth Proportional to 12,831.30, 19,246.74 and 4,066.20

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Solution

The fourth proportional to 12,831.30, 19,246.74 and 4,066.20 is: 6,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.30 : 19,246.74 = 4,066.20 : x
  2. Step 2: Convert to fraction form
    12,831.30/19,246.74 = 4,066.20/x
  3. Step 3: Cross multiply
    12,831.30x = 19,246.74 × 4,066.20
  4. Step 4: Simplify right side
    12,831.30x = 78,261,094.19
  5. Step 5: Solve for x
    x = 78,261,094.19/12,831.30
  6. Step 6: Final answer
    x = 6,099.23

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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.