Home / 8,136.96-11,228.54-5,260.64

Finding the Fourth Proportional to 8,136.96, 11,228.54 and 5,260.64

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Solution

The fourth proportional to 8,136.96, 11,228.54 and 5,260.64 is: 7,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.96 : 11,228.54 = 5,260.64 : x
  2. Step 2: Convert to fraction form
    8,136.96/11,228.54 = 5,260.64/x
  3. Step 3: Cross multiply
    8,136.96x = 11,228.54 × 5,260.64
  4. Step 4: Simplify right side
    8,136.96x = 59,069,306.67
  5. Step 5: Solve for x
    x = 59,069,306.67/8,136.96
  6. Step 6: Final answer
    x = 7,259.38

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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.