Home / 13,439.72-20,164.51-4,677.14

Finding the Fourth Proportional to 13,439.72, 20,164.51 and 4,677.14

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Solution

The fourth proportional to 13,439.72, 20,164.51 and 4,677.14 is: 7,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.72 : 20,164.51 = 4,677.14 : x
  2. Step 2: Convert to fraction form
    13,439.72/20,164.51 = 4,677.14/x
  3. Step 3: Cross multiply
    13,439.72x = 20,164.51 × 4,677.14
  4. Step 4: Simplify right side
    13,439.72x = 94,312,292.56
  5. Step 5: Solve for x
    x = 94,312,292.56/13,439.72
  6. Step 6: Final answer
    x = 7,017.43

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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.