Home / 13,421.52-20,134.44-4,537.71

Finding the Fourth Proportional to 13,421.52, 20,134.44 and 4,537.71

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Solution

The fourth proportional to 13,421.52, 20,134.44 and 4,537.71 is: 6,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421.52 : 20,134.44 = 4,537.71 : x
  2. Step 2: Convert to fraction form
    13,421.52/20,134.44 = 4,537.71/x
  3. Step 3: Cross multiply
    13,421.52x = 20,134.44 × 4,537.71
  4. Step 4: Simplify right side
    13,421.52x = 91,364,249.73
  5. Step 5: Solve for x
    x = 91,364,249.73/13,421.52
  6. Step 6: Final answer
    x = 6,807.30

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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.