Home / 15,051.43-20,775.63-8,682.31

Finding the Fourth Proportional to 15,051.43, 20,775.63 and 8,682.31

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Solution

The fourth proportional to 15,051.43, 20,775.63 and 8,682.31 is: 11,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.43 : 20,775.63 = 8,682.31 : x
  2. Step 2: Convert to fraction form
    15,051.43/20,775.63 = 8,682.31/x
  3. Step 3: Cross multiply
    15,051.43x = 20,775.63 × 8,682.31
  4. Step 4: Simplify right side
    15,051.43x = 180,380,460.11
  5. Step 5: Solve for x
    x = 180,380,460.11/15,051.43
  6. Step 6: Final answer
    x = 11,984.27

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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.