Home / 8,320.81-12,478.03-2,773.09

Finding the Fourth Proportional to 8,320.81, 12,478.03 and 2,773.09

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Solution

The fourth proportional to 8,320.81, 12,478.03 and 2,773.09 is: 4,158.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.81 : 12,478.03 = 2,773.09 : x
  2. Step 2: Convert to fraction form
    8,320.81/12,478.03 = 2,773.09/x
  3. Step 3: Cross multiply
    8,320.81x = 12,478.03 × 2,773.09
  4. Step 4: Simplify right side
    8,320.81x = 34,602,630.89
  5. Step 5: Solve for x
    x = 34,602,630.89/8,320.81
  6. Step 6: Final answer
    x = 4,158.57

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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.