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Finding the Fourth Proportional to 11,000.02, 15,160.18 and 8,011.12

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Solution

The fourth proportional to 11,000.02, 15,160.18 and 8,011.12 is: 11,040.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.02 : 15,160.18 = 8,011.12 : x
  2. Step 2: Convert to fraction form
    11,000.02/15,160.18 = 8,011.12/x
  3. Step 3: Cross multiply
    11,000.02x = 15,160.18 × 8,011.12
  4. Step 4: Simplify right side
    11,000.02x = 121,450,021.20
  5. Step 5: Solve for x
    x = 121,450,021.20/11,000.02
  6. Step 6: Final answer
    x = 11,040.89

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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.