Home / 15,745.93-21,728.72-9,026.91

Finding the Fourth Proportional to 15,745.93, 21,728.72 and 9,026.91

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Solution

The fourth proportional to 15,745.93, 21,728.72 and 9,026.91 is: 12,456.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.93 : 21,728.72 = 9,026.91 : x
  2. Step 2: Convert to fraction form
    15,745.93/21,728.72 = 9,026.91/x
  3. Step 3: Cross multiply
    15,745.93x = 21,728.72 × 9,026.91
  4. Step 4: Simplify right side
    15,745.93x = 196,143,222.42
  5. Step 5: Solve for x
    x = 196,143,222.42/15,745.93
  6. Step 6: Final answer
    x = 12,456.76

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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.