Home / 13,621.84-20,434.07-5,302.53

Finding the Fourth Proportional to 13,621.84, 20,434.07 and 5,302.53

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Solution

The fourth proportional to 13,621.84, 20,434.07 and 5,302.53 is: 7,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.84 : 20,434.07 = 5,302.53 : x
  2. Step 2: Convert to fraction form
    13,621.84/20,434.07 = 5,302.53/x
  3. Step 3: Cross multiply
    13,621.84x = 20,434.07 × 5,302.53
  4. Step 4: Simplify right side
    13,621.84x = 108,352,282.45
  5. Step 5: Solve for x
    x = 108,352,282.45/13,621.84
  6. Step 6: Final answer
    x = 7,954.31

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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.