Home / 11,293.43-15,599.79-8,673.21

Finding the Fourth Proportional to 11,293.43, 15,599.79 and 8,673.21

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Solution

The fourth proportional to 11,293.43, 15,599.79 and 8,673.21 is: 11,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.43 : 15,599.79 = 8,673.21 : x
  2. Step 2: Convert to fraction form
    11,293.43/15,599.79 = 8,673.21/x
  3. Step 3: Cross multiply
    11,293.43x = 15,599.79 × 8,673.21
  4. Step 4: Simplify right side
    11,293.43x = 135,300,254.63
  5. Step 5: Solve for x
    x = 135,300,254.63/11,293.43
  6. Step 6: Final answer
    x = 11,980.44

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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.