Home / 13,791.33-19,031.40-7,822.89

Finding the Fourth Proportional to 13,791.33, 19,031.40 and 7,822.89

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Solution

The fourth proportional to 13,791.33, 19,031.40 and 7,822.89 is: 10,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.33 : 19,031.40 = 7,822.89 : x
  2. Step 2: Convert to fraction form
    13,791.33/19,031.40 = 7,822.89/x
  3. Step 3: Cross multiply
    13,791.33x = 19,031.40 × 7,822.89
  4. Step 4: Simplify right side
    13,791.33x = 148,880,548.75
  5. Step 5: Solve for x
    x = 148,880,548.75/13,791.33
  6. Step 6: Final answer
    x = 10,795.23

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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.