Home / 13,538.64-20,298.36-5,213.52

Finding the Fourth Proportional to 13,538.64, 20,298.36 and 5,213.52

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Solution

The fourth proportional to 13,538.64, 20,298.36 and 5,213.52 is: 7,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.64 : 20,298.36 = 5,213.52 : x
  2. Step 2: Convert to fraction form
    13,538.64/20,298.36 = 5,213.52/x
  3. Step 3: Cross multiply
    13,538.64x = 20,298.36 × 5,213.52
  4. Step 4: Simplify right side
    13,538.64x = 105,825,905.83
  5. Step 5: Solve for x
    x = 105,825,905.83/13,538.64
  6. Step 6: Final answer
    x = 7,816.58

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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.