Home / 15,659.72-21,609.63-8,585.96

Finding the Fourth Proportional to 15,659.72, 21,609.63 and 8,585.96

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Solution

The fourth proportional to 15,659.72, 21,609.63 and 8,585.96 is: 11,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.72 : 21,609.63 = 8,585.96 : x
  2. Step 2: Convert to fraction form
    15,659.72/21,609.63 = 8,585.96/x
  3. Step 3: Cross multiply
    15,659.72x = 21,609.63 × 8,585.96
  4. Step 4: Simplify right side
    15,659.72x = 185,539,418.79
  5. Step 5: Solve for x
    x = 185,539,418.79/15,659.72
  6. Step 6: Final answer
    x = 11,848.20

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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.