Home / 13,084.10-18,056.24-7,115.85

Finding the Fourth Proportional to 13,084.10, 18,056.24 and 7,115.85

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Solution

The fourth proportional to 13,084.10, 18,056.24 and 7,115.85 is: 9,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.10 : 18,056.24 = 7,115.85 : x
  2. Step 2: Convert to fraction form
    13,084.10/18,056.24 = 7,115.85/x
  3. Step 3: Cross multiply
    13,084.10x = 18,056.24 × 7,115.85
  4. Step 4: Simplify right side
    13,084.10x = 128,485,459.82
  5. Step 5: Solve for x
    x = 128,485,459.82/13,084.10
  6. Step 6: Final answer
    x = 9,819.97

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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.