Home / 13,426.46-20,119.16-5,631.02

Finding the Fourth Proportional to 13,426.46, 20,119.16 and 5,631.02

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Solution

The fourth proportional to 13,426.46, 20,119.16 and 5,631.02 is: 8,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.46 : 20,119.16 = 5,631.02 : x
  2. Step 2: Convert to fraction form
    13,426.46/20,119.16 = 5,631.02/x
  3. Step 3: Cross multiply
    13,426.46x = 20,119.16 × 5,631.02
  4. Step 4: Simplify right side
    13,426.46x = 113,291,392.34
  5. Step 5: Solve for x
    x = 113,291,392.34/13,426.46
  6. Step 6: Final answer
    x = 8,437.92

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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.