Home / 13,282.41-18,325.61-7,538.94

Finding the Fourth Proportional to 13,282.41, 18,325.61 and 7,538.94

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Solution

The fourth proportional to 13,282.41, 18,325.61 and 7,538.94 is: 10,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.41 : 18,325.61 = 7,538.94 : x
  2. Step 2: Convert to fraction form
    13,282.41/18,325.61 = 7,538.94/x
  3. Step 3: Cross multiply
    13,282.41x = 18,325.61 × 7,538.94
  4. Step 4: Simplify right side
    13,282.41x = 138,155,636.56
  5. Step 5: Solve for x
    x = 138,155,636.56/13,282.41
  6. Step 6: Final answer
    x = 10,401.40

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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.