Home / 12,302.34-18,442.14-4,905

Finding the Fourth Proportional to 12,302.34, 18,442.14 and 4,905

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Solution

The fourth proportional to 12,302.34, 18,442.14 and 4,905 is: 7,352.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.34 : 18,442.14 = 4,905 : x
  2. Step 2: Convert to fraction form
    12,302.34/18,442.14 = 4,905/x
  3. Step 3: Cross multiply
    12,302.34x = 18,442.14 × 4,905
  4. Step 4: Simplify right side
    12,302.34x = 90,458,696.70
  5. Step 5: Solve for x
    x = 90,458,696.70/12,302.34
  6. Step 6: Final answer
    x = 7,352.97

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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.