Home / 13,928.03-19,222.21-9,151.86

Finding the Fourth Proportional to 13,928.03, 19,222.21 and 9,151.86

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Solution

The fourth proportional to 13,928.03, 19,222.21 and 9,151.86 is: 12,630.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.03 : 19,222.21 = 9,151.86 : x
  2. Step 2: Convert to fraction form
    13,928.03/19,222.21 = 9,151.86/x
  3. Step 3: Cross multiply
    13,928.03x = 19,222.21 × 9,151.86
  4. Step 4: Simplify right side
    13,928.03x = 175,919,004.27
  5. Step 5: Solve for x
    x = 175,919,004.27/13,928.03
  6. Step 6: Final answer
    x = 12,630.58

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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.