Home / 8,156.79-11,239.56-6,268.28

Finding the Fourth Proportional to 8,156.79, 11,239.56 and 6,268.28

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Solution

The fourth proportional to 8,156.79, 11,239.56 and 6,268.28 is: 8,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.79 : 11,239.56 = 6,268.28 : x
  2. Step 2: Convert to fraction form
    8,156.79/11,239.56 = 6,268.28/x
  3. Step 3: Cross multiply
    8,156.79x = 11,239.56 × 6,268.28
  4. Step 4: Simplify right side
    8,156.79x = 70,452,652.96
  5. Step 5: Solve for x
    x = 70,452,652.96/8,156.79
  6. Step 6: Final answer
    x = 8,637.30

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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.