Home / 7,729.82-11,586.68-5,877.05

Finding the Fourth Proportional to 7,729.82, 11,586.68 and 5,877.05

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Solution

The fourth proportional to 7,729.82, 11,586.68 and 5,877.05 is: 8,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.82 : 11,586.68 = 5,877.05 : x
  2. Step 2: Convert to fraction form
    7,729.82/11,586.68 = 5,877.05/x
  3. Step 3: Cross multiply
    7,729.82x = 11,586.68 × 5,877.05
  4. Step 4: Simplify right side
    7,729.82x = 68,095,432.41
  5. Step 5: Solve for x
    x = 68,095,432.41/7,729.82
  6. Step 6: Final answer
    x = 8,809.45

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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.