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Finding the Fourth Proportional to 7,995.61, 11,994.78 and 3,554.86

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Solution

The fourth proportional to 7,995.61, 11,994.78 and 3,554.86 is: 5,332.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.61 : 11,994.78 = 3,554.86 : x
  2. Step 2: Convert to fraction form
    7,995.61/11,994.78 = 3,554.86/x
  3. Step 3: Cross multiply
    7,995.61x = 11,994.78 × 3,554.86
  4. Step 4: Simplify right side
    7,995.61x = 42,639,803.20
  5. Step 5: Solve for x
    x = 42,639,803.20/7,995.61
  6. Step 6: Final answer
    x = 5,332.90

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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.