Home / 15,326.82-21,150.54-8,612.28

Finding the Fourth Proportional to 15,326.82, 21,150.54 and 8,612.28

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Solution

The fourth proportional to 15,326.82, 21,150.54 and 8,612.28 is: 11,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.82 : 21,150.54 = 8,612.28 : x
  2. Step 2: Convert to fraction form
    15,326.82/21,150.54 = 8,612.28/x
  3. Step 3: Cross multiply
    15,326.82x = 21,150.54 × 8,612.28
  4. Step 4: Simplify right side
    15,326.82x = 182,154,372.63
  5. Step 5: Solve for x
    x = 182,154,372.63/15,326.82
  6. Step 6: Final answer
    x = 11,884.68

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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.