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Finding the Fourth Proportional to 8,056, 11,117.28 and 4,912.84

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Solution

The fourth proportional to 8,056, 11,117.28 and 4,912.84 is: 6,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,056 : 11,117.28 = 4,912.84 : x
  2. Step 2: Convert to fraction form
    8,056/11,117.28 = 4,912.84/x
  3. Step 3: Cross multiply
    8,056x = 11,117.28 × 4,912.84
  4. Step 4: Simplify right side
    8,056x = 54,617,417.88
  5. Step 5: Solve for x
    x = 54,617,417.88/8,056
  6. Step 6: Final answer
    x = 6,779.72

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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.