Home / 11,228.80-16,835.10-7,335.40

Finding the Fourth Proportional to 11,228.80, 16,835.10 and 7,335.40

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Solution

The fourth proportional to 11,228.80, 16,835.10 and 7,335.40 is: 10,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.80 : 16,835.10 = 7,335.40 : x
  2. Step 2: Convert to fraction form
    11,228.80/16,835.10 = 7,335.40/x
  3. Step 3: Cross multiply
    11,228.80x = 16,835.10 × 7,335.40
  4. Step 4: Simplify right side
    11,228.80x = 123,492,192.54
  5. Step 5: Solve for x
    x = 123,492,192.54/11,228.80
  6. Step 6: Final answer
    x = 10,997.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.