Home / 13,938.06-19,235.03-7,650.44

Finding the Fourth Proportional to 13,938.06, 19,235.03 and 7,650.44

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Solution

The fourth proportional to 13,938.06, 19,235.03 and 7,650.44 is: 10,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.06 : 19,235.03 = 7,650.44 : x
  2. Step 2: Convert to fraction form
    13,938.06/19,235.03 = 7,650.44/x
  3. Step 3: Cross multiply
    13,938.06x = 19,235.03 × 7,650.44
  4. Step 4: Simplify right side
    13,938.06x = 147,156,442.91
  5. Step 5: Solve for x
    x = 147,156,442.91/13,938.06
  6. Step 6: Final answer
    x = 10,557.89

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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.