Home / 13,986.52-19,301.76-7,699.28

Finding the Fourth Proportional to 13,986.52, 19,301.76 and 7,699.28

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Solution

The fourth proportional to 13,986.52, 19,301.76 and 7,699.28 is: 10,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.52 : 19,301.76 = 7,699.28 : x
  2. Step 2: Convert to fraction form
    13,986.52/19,301.76 = 7,699.28/x
  3. Step 3: Cross multiply
    13,986.52x = 19,301.76 × 7,699.28
  4. Step 4: Simplify right side
    13,986.52x = 148,609,654.73
  5. Step 5: Solve for x
    x = 148,609,654.73/13,986.52
  6. Step 6: Final answer
    x = 10,625.21

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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.