Home / 13,274.82-19,913.48-4,390.19

Finding the Fourth Proportional to 13,274.82, 19,913.48 and 4,390.19

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Solution

The fourth proportional to 13,274.82, 19,913.48 and 4,390.19 is: 6,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.82 : 19,913.48 = 4,390.19 : x
  2. Step 2: Convert to fraction form
    13,274.82/19,913.48 = 4,390.19/x
  3. Step 3: Cross multiply
    13,274.82x = 19,913.48 × 4,390.19
  4. Step 4: Simplify right side
    13,274.82x = 87,423,960.76
  5. Step 5: Solve for x
    x = 87,423,960.76/13,274.82
  6. Step 6: Final answer
    x = 6,585.70

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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.