Home / 8,136.18-11,236.11-7,010.82

Finding the Fourth Proportional to 8,136.18, 11,236.11 and 7,010.82

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Solution

The fourth proportional to 8,136.18, 11,236.11 and 7,010.82 is: 9,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.18 : 11,236.11 = 7,010.82 : x
  2. Step 2: Convert to fraction form
    8,136.18/11,236.11 = 7,010.82/x
  3. Step 3: Cross multiply
    8,136.18x = 11,236.11 × 7,010.82
  4. Step 4: Simplify right side
    8,136.18x = 78,774,344.71
  5. Step 5: Solve for x
    x = 78,774,344.71/8,136.18
  6. Step 6: Final answer
    x = 9,681.98

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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.