Home / 12,554.94-18,831.50-5,157.39

Finding the Fourth Proportional to 12,554.94, 18,831.50 and 5,157.39

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Solution

The fourth proportional to 12,554.94, 18,831.50 and 5,157.39 is: 7,735.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.94 : 18,831.50 = 5,157.39 : x
  2. Step 2: Convert to fraction form
    12,554.94/18,831.50 = 5,157.39/x
  3. Step 3: Cross multiply
    12,554.94x = 18,831.50 × 5,157.39
  4. Step 4: Simplify right side
    12,554.94x = 97,121,364.00
  5. Step 5: Solve for x
    x = 97,121,364.00/12,554.94
  6. Step 6: Final answer
    x = 7,735.71

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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.