Home / 12,954.81-17,882.76-8,173.77

Finding the Fourth Proportional to 12,954.81, 17,882.76 and 8,173.77

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Solution

The fourth proportional to 12,954.81, 17,882.76 and 8,173.77 is: 11,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.81 : 17,882.76 = 8,173.77 : x
  2. Step 2: Convert to fraction form
    12,954.81/17,882.76 = 8,173.77/x
  3. Step 3: Cross multiply
    12,954.81x = 17,882.76 × 8,173.77
  4. Step 4: Simplify right side
    12,954.81x = 146,169,567.21
  5. Step 5: Solve for x
    x = 146,169,567.21/12,954.81
  6. Step 6: Final answer
    x = 11,283.03

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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.