Home / 16,905.61-23,329.50-9,351.76

Finding the Fourth Proportional to 16,905.61, 23,329.50 and 9,351.76

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Solution

The fourth proportional to 16,905.61, 23,329.50 and 9,351.76 is: 12,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.61 : 23,329.50 = 9,351.76 : x
  2. Step 2: Convert to fraction form
    16,905.61/23,329.50 = 9,351.76/x
  3. Step 3: Cross multiply
    16,905.61x = 23,329.50 × 9,351.76
  4. Step 4: Simplify right side
    16,905.61x = 218,171,884.92
  5. Step 5: Solve for x
    x = 218,171,884.92/16,905.61
  6. Step 6: Final answer
    x = 12,905.30

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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.