Home / 8,521.56-11,753.10-5,538.36

Finding the Fourth Proportional to 8,521.56, 11,753.10 and 5,538.36

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Solution

The fourth proportional to 8,521.56, 11,753.10 and 5,538.36 is: 7,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.56 : 11,753.10 = 5,538.36 : x
  2. Step 2: Convert to fraction form
    8,521.56/11,753.10 = 5,538.36/x
  3. Step 3: Cross multiply
    8,521.56x = 11,753.10 × 5,538.36
  4. Step 4: Simplify right side
    8,521.56x = 65,092,942.99
  5. Step 5: Solve for x
    x = 65,092,942.99/8,521.56
  6. Step 6: Final answer
    x = 7,638.62

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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.