Home / 13,779.56-20,656.84-5,008.28

Finding the Fourth Proportional to 13,779.56, 20,656.84 and 5,008.28

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Solution

The fourth proportional to 13,779.56, 20,656.84 and 5,008.28 is: 7,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.56 : 20,656.84 = 5,008.28 : x
  2. Step 2: Convert to fraction form
    13,779.56/20,656.84 = 5,008.28/x
  3. Step 3: Cross multiply
    13,779.56x = 20,656.84 × 5,008.28
  4. Step 4: Simplify right side
    13,779.56x = 103,455,238.64
  5. Step 5: Solve for x
    x = 103,455,238.64/13,779.56
  6. Step 6: Final answer
    x = 7,507.88

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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.