Home / 13,946-19,247.91-7,977.92

Finding the Fourth Proportional to 13,946, 19,247.91 and 7,977.92

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Solution

The fourth proportional to 13,946, 19,247.91 and 7,977.92 is: 11,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946 : 19,247.91 = 7,977.92 : x
  2. Step 2: Convert to fraction form
    13,946/19,247.91 = 7,977.92/x
  3. Step 3: Cross multiply
    13,946x = 19,247.91 × 7,977.92
  4. Step 4: Simplify right side
    13,946x = 153,558,286.15
  5. Step 5: Solve for x
    x = 153,558,286.15/13,946
  6. Step 6: Final answer
    x = 11,010.92

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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.