Home / 13,860.32-19,133.54-8,831.44

Finding the Fourth Proportional to 13,860.32, 19,133.54 and 8,831.44

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Solution

The fourth proportional to 13,860.32, 19,133.54 and 8,831.44 is: 12,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.32 : 19,133.54 = 8,831.44 : x
  2. Step 2: Convert to fraction form
    13,860.32/19,133.54 = 8,831.44/x
  3. Step 3: Cross multiply
    13,860.32x = 19,133.54 × 8,831.44
  4. Step 4: Simplify right side
    13,860.32x = 168,976,684.74
  5. Step 5: Solve for x
    x = 168,976,684.74/13,860.32
  6. Step 6: Final answer
    x = 12,191.40

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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.