Home / 11,491.34-15,845.64-10,485.32

Finding the Fourth Proportional to 11,491.34, 15,845.64 and 10,485.32

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Solution

The fourth proportional to 11,491.34, 15,845.64 and 10,485.32 is: 14,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.34 : 15,845.64 = 10,485.32 : x
  2. Step 2: Convert to fraction form
    11,491.34/15,845.64 = 10,485.32/x
  3. Step 3: Cross multiply
    11,491.34x = 15,845.64 × 10,485.32
  4. Step 4: Simplify right side
    11,491.34x = 166,146,606.00
  5. Step 5: Solve for x
    x = 166,146,606.00/11,491.34
  6. Step 6: Final answer
    x = 14,458.42

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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.