Home / 13,981.44-19,294.38-7,693.78

Finding the Fourth Proportional to 13,981.44, 19,294.38 and 7,693.78

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Solution

The fourth proportional to 13,981.44, 19,294.38 and 7,693.78 is: 10,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.44 : 19,294.38 = 7,693.78 : x
  2. Step 2: Convert to fraction form
    13,981.44/19,294.38 = 7,693.78/x
  3. Step 3: Cross multiply
    13,981.44x = 19,294.38 × 7,693.78
  4. Step 4: Simplify right side
    13,981.44x = 148,446,714.96
  5. Step 5: Solve for x
    x = 148,446,714.96/13,981.44
  6. Step 6: Final answer
    x = 10,617.41

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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.