Home / 12,901.37-17,803.67-10,905.75

Finding the Fourth Proportional to 12,901.37, 17,803.67 and 10,905.75

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Solution

The fourth proportional to 12,901.37, 17,803.67 and 10,905.75 is: 15,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.37 : 17,803.67 = 10,905.75 : x
  2. Step 2: Convert to fraction form
    12,901.37/17,803.67 = 10,905.75/x
  3. Step 3: Cross multiply
    12,901.37x = 17,803.67 × 10,905.75
  4. Step 4: Simplify right side
    12,901.37x = 194,162,319.57
  5. Step 5: Solve for x
    x = 194,162,319.57/12,901.37
  6. Step 6: Final answer
    x = 15,049.75

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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.