Home / 7,390.12-11,125.10-6,736.18

Finding the Fourth Proportional to 7,390.12, 11,125.10 and 6,736.18

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Solution

The fourth proportional to 7,390.12, 11,125.10 and 6,736.18 is: 10,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.12 : 11,125.10 = 6,736.18 : x
  2. Step 2: Convert to fraction form
    7,390.12/11,125.10 = 6,736.18/x
  3. Step 3: Cross multiply
    7,390.12x = 11,125.10 × 6,736.18
  4. Step 4: Simplify right side
    7,390.12x = 74,940,676.12
  5. Step 5: Solve for x
    x = 74,940,676.12/7,390.12
  6. Step 6: Final answer
    x = 10,140.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.