Home / 11,817.95-16,310.30-7,103.16

Finding the Fourth Proportional to 11,817.95, 16,310.30 and 7,103.16

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Solution

The fourth proportional to 11,817.95, 16,310.30 and 7,103.16 is: 9,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.95 : 16,310.30 = 7,103.16 : x
  2. Step 2: Convert to fraction form
    11,817.95/16,310.30 = 7,103.16/x
  3. Step 3: Cross multiply
    11,817.95x = 16,310.30 × 7,103.16
  4. Step 4: Simplify right side
    11,817.95x = 115,854,635.03
  5. Step 5: Solve for x
    x = 115,854,635.03/11,817.95
  6. Step 6: Final answer
    x = 9,803.28

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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.