Home / 13,242.44-18,274.49-7,192.63

Finding the Fourth Proportional to 13,242.44, 18,274.49 and 7,192.63

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Solution

The fourth proportional to 13,242.44, 18,274.49 and 7,192.63 is: 9,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.44 : 18,274.49 = 7,192.63 : x
  2. Step 2: Convert to fraction form
    13,242.44/18,274.49 = 7,192.63/x
  3. Step 3: Cross multiply
    13,242.44x = 18,274.49 × 7,192.63
  4. Step 4: Simplify right side
    13,242.44x = 131,441,638.63
  5. Step 5: Solve for x
    x = 131,441,638.63/13,242.44
  6. Step 6: Final answer
    x = 9,925.79

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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.