Home / 19,816.64-29,730.12-8,725.52

Finding the Fourth Proportional to 19,816.64, 29,730.12 and 8,725.52

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Solution

The fourth proportional to 19,816.64, 29,730.12 and 8,725.52 is: 13,090.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.64 : 29,730.12 = 8,725.52 : x
  2. Step 2: Convert to fraction form
    19,816.64/29,730.12 = 8,725.52/x
  3. Step 3: Cross multiply
    19,816.64x = 29,730.12 × 8,725.52
  4. Step 4: Simplify right side
    19,816.64x = 259,410,756.66
  5. Step 5: Solve for x
    x = 259,410,756.66/19,816.64
  6. Step 6: Final answer
    x = 13,090.55

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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.