Home / 13,320.72-19,982.16-5,534.64

Finding the Fourth Proportional to 13,320.72, 19,982.16 and 5,534.64

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Solution

The fourth proportional to 13,320.72, 19,982.16 and 5,534.64 is: 8,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.72 : 19,982.16 = 5,534.64 : x
  2. Step 2: Convert to fraction form
    13,320.72/19,982.16 = 5,534.64/x
  3. Step 3: Cross multiply
    13,320.72x = 19,982.16 × 5,534.64
  4. Step 4: Simplify right side
    13,320.72x = 110,594,062.02
  5. Step 5: Solve for x
    x = 110,594,062.02/13,320.72
  6. Step 6: Final answer
    x = 8,302.41

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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.