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Finding the Fourth Proportional to 11,995.58, 16,562.07 and 7,756.90

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Solution

The fourth proportional to 11,995.58, 16,562.07 and 7,756.90 is: 10,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.58 : 16,562.07 = 7,756.90 : x
  2. Step 2: Convert to fraction form
    11,995.58/16,562.07 = 7,756.90/x
  3. Step 3: Cross multiply
    11,995.58x = 16,562.07 × 7,756.90
  4. Step 4: Simplify right side
    11,995.58x = 128,470,279.38
  5. Step 5: Solve for x
    x = 128,470,279.38/11,995.58
  6. Step 6: Final answer
    x = 10,709.80

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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.