Home / 13,240.56-18,271.26-7,575.42

Finding the Fourth Proportional to 13,240.56, 18,271.26 and 7,575.42

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Solution

The fourth proportional to 13,240.56, 18,271.26 and 7,575.42 is: 10,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.56 : 18,271.26 = 7,575.42 : x
  2. Step 2: Convert to fraction form
    13,240.56/18,271.26 = 7,575.42/x
  3. Step 3: Cross multiply
    13,240.56x = 18,271.26 × 7,575.42
  4. Step 4: Simplify right side
    13,240.56x = 138,412,468.43
  5. Step 5: Solve for x
    x = 138,412,468.43/13,240.56
  6. Step 6: Final answer
    x = 10,453.67

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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.