Home / 13,421.58-18,522.40-7,453.27

Finding the Fourth Proportional to 13,421.58, 18,522.40 and 7,453.27

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Solution

The fourth proportional to 13,421.58, 18,522.40 and 7,453.27 is: 10,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.58 : 18,522.40 = 7,453.27 : x
  2. Step 2: Convert to fraction form
    13,421.58/18,522.40 = 7,453.27/x
  3. Step 3: Cross multiply
    13,421.58x = 18,522.40 × 7,453.27
  4. Step 4: Simplify right side
    13,421.58x = 138,052,475.92
  5. Step 5: Solve for x
    x = 138,052,475.92/13,421.58
  6. Step 6: Final answer
    x = 10,285.86

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1.5x scale

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.