Home / 13,112.52-19,663.56-4,790.64

Finding the Fourth Proportional to 13,112.52, 19,663.56 and 4,790.64

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Solution

The fourth proportional to 13,112.52, 19,663.56 and 4,790.64 is: 7,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.52 : 19,663.56 = 4,790.64 : x
  2. Step 2: Convert to fraction form
    13,112.52/19,663.56 = 4,790.64/x
  3. Step 3: Cross multiply
    13,112.52x = 19,663.56 × 4,790.64
  4. Step 4: Simplify right side
    13,112.52x = 94,201,037.08
  5. Step 5: Solve for x
    x = 94,201,037.08/13,112.52
  6. Step 6: Final answer
    x = 7,184.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.