Home / 12,277.81-16,928.50-9,553.14

Finding the Fourth Proportional to 12,277.81, 16,928.50 and 9,553.14

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Solution

The fourth proportional to 12,277.81, 16,928.50 and 9,553.14 is: 13,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.81 : 16,928.50 = 9,553.14 : x
  2. Step 2: Convert to fraction form
    12,277.81/16,928.50 = 9,553.14/x
  3. Step 3: Cross multiply
    12,277.81x = 16,928.50 × 9,553.14
  4. Step 4: Simplify right side
    12,277.81x = 161,720,330.49
  5. Step 5: Solve for x
    x = 161,720,330.49/12,277.81
  6. Step 6: Final answer
    x = 13,171.76

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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.