Home / 12,831.42-19,154.22-11,087.62

Finding the Fourth Proportional to 12,831.42, 19,154.22 and 11,087.62

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Solution

The fourth proportional to 12,831.42, 19,154.22 and 11,087.62 is: 16,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.42 : 19,154.22 = 11,087.62 : x
  2. Step 2: Convert to fraction form
    12,831.42/19,154.22 = 11,087.62/x
  3. Step 3: Cross multiply
    12,831.42x = 19,154.22 × 11,087.62
  4. Step 4: Simplify right side
    12,831.42x = 212,374,712.76
  5. Step 5: Solve for x
    x = 212,374,712.76/12,831.42
  6. Step 6: Final answer
    x = 16,551.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.