Home / 13,344.56-18,415.20-7,376

Finding the Fourth Proportional to 13,344.56, 18,415.20 and 7,376

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Solution

The fourth proportional to 13,344.56, 18,415.20 and 7,376 is: 10,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.56 : 18,415.20 = 7,376 : x
  2. Step 2: Convert to fraction form
    13,344.56/18,415.20 = 7,376/x
  3. Step 3: Cross multiply
    13,344.56x = 18,415.20 × 7,376
  4. Step 4: Simplify right side
    13,344.56x = 135,830,515.20
  5. Step 5: Solve for x
    x = 135,830,515.20/13,344.56
  6. Step 6: Final answer
    x = 10,178.72

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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.