Home / 13,930.56-19,225.89-8,630.73

Finding the Fourth Proportional to 13,930.56, 19,225.89 and 8,630.73

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Solution

The fourth proportional to 13,930.56, 19,225.89 and 8,630.73 is: 11,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.56 : 19,225.89 = 8,630.73 : x
  2. Step 2: Convert to fraction form
    13,930.56/19,225.89 = 8,630.73/x
  3. Step 3: Cross multiply
    13,930.56x = 19,225.89 × 8,630.73
  4. Step 4: Simplify right side
    13,930.56x = 165,933,465.60
  5. Step 5: Solve for x
    x = 165,933,465.60/13,930.56
  6. Step 6: Final answer
    x = 11,911.47

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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.