Home / 12,173.24-16,800.36-7,141.70

Finding the Fourth Proportional to 12,173.24, 16,800.36 and 7,141.70

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Solution

The fourth proportional to 12,173.24, 16,800.36 and 7,141.70 is: 9,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.24 : 16,800.36 = 7,141.70 : x
  2. Step 2: Convert to fraction form
    12,173.24/16,800.36 = 7,141.70/x
  3. Step 3: Cross multiply
    12,173.24x = 16,800.36 × 7,141.70
  4. Step 4: Simplify right side
    12,173.24x = 119,983,131.01
  5. Step 5: Solve for x
    x = 119,983,131.01/12,173.24
  6. Step 6: Final answer
    x = 9,856.30

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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.