Home / 13,243.23-18,274.76-7,275.15

Finding the Fourth Proportional to 13,243.23, 18,274.76 and 7,275.15

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Solution

The fourth proportional to 13,243.23, 18,274.76 and 7,275.15 is: 10,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.23 : 18,274.76 = 7,275.15 : x
  2. Step 2: Convert to fraction form
    13,243.23/18,274.76 = 7,275.15/x
  3. Step 3: Cross multiply
    13,243.23x = 18,274.76 × 7,275.15
  4. Step 4: Simplify right side
    13,243.23x = 132,951,583.84
  5. Step 5: Solve for x
    x = 132,951,583.84/13,243.23
  6. Step 6: Final answer
    x = 10,039.21

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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.