Home / 12,936.81-17,853.30-7,271.67

Finding the Fourth Proportional to 12,936.81, 17,853.30 and 7,271.67

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Solution

The fourth proportional to 12,936.81, 17,853.30 and 7,271.67 is: 10,035.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.81 : 17,853.30 = 7,271.67 : x
  2. Step 2: Convert to fraction form
    12,936.81/17,853.30 = 7,271.67/x
  3. Step 3: Cross multiply
    12,936.81x = 17,853.30 × 7,271.67
  4. Step 4: Simplify right side
    12,936.81x = 129,823,306.01
  5. Step 5: Solve for x
    x = 129,823,306.01/12,936.81
  6. Step 6: Final answer
    x = 10,035.19

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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.