Home / 15,745.89-21,727.73-9,695.18

Finding the Fourth Proportional to 15,745.89, 21,727.73 and 9,695.18

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Solution

The fourth proportional to 15,745.89, 21,727.73 and 9,695.18 is: 13,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.89 : 21,727.73 = 9,695.18 : x
  2. Step 2: Convert to fraction form
    15,745.89/21,727.73 = 9,695.18/x
  3. Step 3: Cross multiply
    15,745.89x = 21,727.73 × 9,695.18
  4. Step 4: Simplify right side
    15,745.89x = 210,654,096.23
  5. Step 5: Solve for x
    x = 210,654,096.23/15,745.89
  6. Step 6: Final answer
    x = 13,378.35

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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.