Home / 13,471.36-20,214.48-5,680

Finding the Fourth Proportional to 13,471.36, 20,214.48 and 5,680

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Solution

The fourth proportional to 13,471.36, 20,214.48 and 5,680 is: 8,523.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.36 : 20,214.48 = 5,680 : x
  2. Step 2: Convert to fraction form
    13,471.36/20,214.48 = 5,680/x
  3. Step 3: Cross multiply
    13,471.36x = 20,214.48 × 5,680
  4. Step 4: Simplify right side
    13,471.36x = 114,818,246.40
  5. Step 5: Solve for x
    x = 114,818,246.40/13,471.36
  6. Step 6: Final answer
    x = 8,523.14

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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.