Home / 13,352.47-18,426.21-7,384

Finding the Fourth Proportional to 13,352.47, 18,426.21 and 7,384

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Solution

The fourth proportional to 13,352.47, 18,426.21 and 7,384 is: 10,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.47 : 18,426.21 = 7,384 : x
  2. Step 2: Convert to fraction form
    13,352.47/18,426.21 = 7,384/x
  3. Step 3: Cross multiply
    13,352.47x = 18,426.21 × 7,384
  4. Step 4: Simplify right side
    13,352.47x = 136,059,134.64
  5. Step 5: Solve for x
    x = 136,059,134.64/13,352.47
  6. Step 6: Final answer
    x = 10,189.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.