Home / 12,528.25-17,286.35-7,491.67

Finding the Fourth Proportional to 12,528.25, 17,286.35 and 7,491.67

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Solution

The fourth proportional to 12,528.25, 17,286.35 and 7,491.67 is: 10,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.25 : 17,286.35 = 7,491.67 : x
  2. Step 2: Convert to fraction form
    12,528.25/17,286.35 = 7,491.67/x
  3. Step 3: Cross multiply
    12,528.25x = 17,286.35 × 7,491.67
  4. Step 4: Simplify right side
    12,528.25x = 129,503,549.03
  5. Step 5: Solve for x
    x = 129,503,549.03/12,528.25
  6. Step 6: Final answer
    x = 10,336.92

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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.