Home / 13,292.88-18,343.96-7,325.12

Finding the Fourth Proportional to 13,292.88, 18,343.96 and 7,325.12

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Solution

The fourth proportional to 13,292.88, 18,343.96 and 7,325.12 is: 10,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.88 : 18,343.96 = 7,325.12 : x
  2. Step 2: Convert to fraction form
    13,292.88/18,343.96 = 7,325.12/x
  3. Step 3: Cross multiply
    13,292.88x = 18,343.96 × 7,325.12
  4. Step 4: Simplify right side
    13,292.88x = 134,371,708.28
  5. Step 5: Solve for x
    x = 134,371,708.28/13,292.88
  6. Step 6: Final answer
    x = 10,108.55

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1.5x scale

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.