Home / 15,343.43-21,173.80-8,628.92

Finding the Fourth Proportional to 15,343.43, 21,173.80 and 8,628.92

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Solution

The fourth proportional to 15,343.43, 21,173.80 and 8,628.92 is: 11,907.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.43 : 21,173.80 = 8,628.92 : x
  2. Step 2: Convert to fraction form
    15,343.43/21,173.80 = 8,628.92/x
  3. Step 3: Cross multiply
    15,343.43x = 21,173.80 × 8,628.92
  4. Step 4: Simplify right side
    15,343.43x = 182,707,026.30
  5. Step 5: Solve for x
    x = 182,707,026.30/15,343.43
  6. Step 6: Final answer
    x = 11,907.83

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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.