Home / 15,659.03-21,609.31-8,585.44

Finding the Fourth Proportional to 15,659.03, 21,609.31 and 8,585.44

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Solution

The fourth proportional to 15,659.03, 21,609.31 and 8,585.44 is: 11,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.03 : 21,609.31 = 8,585.44 : x
  2. Step 2: Convert to fraction form
    15,659.03/21,609.31 = 8,585.44/x
  3. Step 3: Cross multiply
    15,659.03x = 21,609.31 × 8,585.44
  4. Step 4: Simplify right side
    15,659.03x = 185,525,434.45
  5. Step 5: Solve for x
    x = 185,525,434.45/15,659.03
  6. Step 6: Final answer
    x = 11,847.82

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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.