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Finding the Fourth Proportional to 8,591.01, 12,860.58 and 7,769.67

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Solution

The fourth proportional to 8,591.01, 12,860.58 and 7,769.67 is: 11,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.01 : 12,860.58 = 7,769.67 : x
  2. Step 2: Convert to fraction form
    8,591.01/12,860.58 = 7,769.67/x
  3. Step 3: Cross multiply
    8,591.01x = 12,860.58 × 7,769.67
  4. Step 4: Simplify right side
    8,591.01x = 99,922,462.61
  5. Step 5: Solve for x
    x = 99,922,462.61/8,591.01
  6. Step 6: Final answer
    x = 11,631.05

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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.