Home / 13,609.53-20,412.47-5,288.75

Finding the Fourth Proportional to 13,609.53, 20,412.47 and 5,288.75

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Solution

The fourth proportional to 13,609.53, 20,412.47 and 5,288.75 is: 7,932.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609.53 : 20,412.47 = 5,288.75 : x
  2. Step 2: Convert to fraction form
    13,609.53/20,412.47 = 5,288.75/x
  3. Step 3: Cross multiply
    13,609.53x = 20,412.47 × 5,288.75
  4. Step 4: Simplify right side
    13,609.53x = 107,956,322.21
  5. Step 5: Solve for x
    x = 107,956,322.21/13,609.53
  6. Step 6: Final answer
    x = 7,932.41

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1.5x scale

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.