Home / 19,258.56-28,890.72-6,111.36

Finding the Fourth Proportional to 19,258.56, 28,890.72 and 6,111.36

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Solution

The fourth proportional to 19,258.56, 28,890.72 and 6,111.36 is: 9,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.56 : 28,890.72 = 6,111.36 : x
  2. Step 2: Convert to fraction form
    19,258.56/28,890.72 = 6,111.36/x
  3. Step 3: Cross multiply
    19,258.56x = 28,890.72 × 6,111.36
  4. Step 4: Simplify right side
    19,258.56x = 176,561,590.58
  5. Step 5: Solve for x
    x = 176,561,590.58/19,258.56
  6. Step 6: Final answer
    x = 9,167.95

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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.