Home / 11,110.20-16,665.30-9,857.40

Finding the Fourth Proportional to 11,110.20, 16,665.30 and 9,857.40

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Solution

The fourth proportional to 11,110.20, 16,665.30 and 9,857.40 is: 14,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.20 : 16,665.30 = 9,857.40 : x
  2. Step 2: Convert to fraction form
    11,110.20/16,665.30 = 9,857.40/x
  3. Step 3: Cross multiply
    11,110.20x = 16,665.30 × 9,857.40
  4. Step 4: Simplify right side
    11,110.20x = 164,276,528.22
  5. Step 5: Solve for x
    x = 164,276,528.22/11,110.20
  6. Step 6: Final answer
    x = 14,786.10

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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.