Home / 11,521.56-15,899.49-6,417.03

Finding the Fourth Proportional to 11,521.56, 15,899.49 and 6,417.03

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Solution

The fourth proportional to 11,521.56, 15,899.49 and 6,417.03 is: 8,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.56 : 15,899.49 = 6,417.03 : x
  2. Step 2: Convert to fraction form
    11,521.56/15,899.49 = 6,417.03/x
  3. Step 3: Cross multiply
    11,521.56x = 15,899.49 × 6,417.03
  4. Step 4: Simplify right side
    11,521.56x = 102,027,504.31
  5. Step 5: Solve for x
    x = 102,027,504.31/11,521.56
  6. Step 6: Final answer
    x = 8,855.36

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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.