Home / 13,614.42-20,421.64-3,754.74

Finding the Fourth Proportional to 13,614.42, 20,421.64 and 3,754.74

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Solution

The fourth proportional to 13,614.42, 20,421.64 and 3,754.74 is: 5,632.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.42 : 20,421.64 = 3,754.74 : x
  2. Step 2: Convert to fraction form
    13,614.42/20,421.64 = 3,754.74/x
  3. Step 3: Cross multiply
    13,614.42x = 20,421.64 × 3,754.74
  4. Step 4: Simplify right side
    13,614.42x = 76,677,948.57
  5. Step 5: Solve for x
    x = 76,677,948.57/13,614.42
  6. Step 6: Final answer
    x = 5,632.11

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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.