Home / 13,456.64-18,573.12-7,795.28

Finding the Fourth Proportional to 13,456.64, 18,573.12 and 7,795.28

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Solution

The fourth proportional to 13,456.64, 18,573.12 and 7,795.28 is: 10,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.64 : 18,573.12 = 7,795.28 : x
  2. Step 2: Convert to fraction form
    13,456.64/18,573.12 = 7,795.28/x
  3. Step 3: Cross multiply
    13,456.64x = 18,573.12 × 7,795.28
  4. Step 4: Simplify right side
    13,456.64x = 144,782,670.87
  5. Step 5: Solve for x
    x = 144,782,670.87/13,456.64
  6. Step 6: Final answer
    x = 10,759.20

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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.