Home / 11,521.44-17,272.08-9,777.72

Finding the Fourth Proportional to 11,521.44, 17,272.08 and 9,777.72

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Solution

The fourth proportional to 11,521.44, 17,272.08 and 9,777.72 is: 14,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.44 : 17,272.08 = 9,777.72 : x
  2. Step 2: Convert to fraction form
    11,521.44/17,272.08 = 9,777.72/x
  3. Step 3: Cross multiply
    11,521.44x = 17,272.08 × 9,777.72
  4. Step 4: Simplify right side
    11,521.44x = 168,881,562.06
  5. Step 5: Solve for x
    x = 168,881,562.06/11,521.44
  6. Step 6: Final answer
    x = 14,658.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.