Home / 11,346.30-15,640.54-7,979.94

Finding the Fourth Proportional to 11,346.30, 15,640.54 and 7,979.94

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Solution

The fourth proportional to 11,346.30, 15,640.54 and 7,979.94 is: 11,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346.30 : 15,640.54 = 7,979.94 : x
  2. Step 2: Convert to fraction form
    11,346.30/15,640.54 = 7,979.94/x
  3. Step 3: Cross multiply
    11,346.30x = 15,640.54 × 7,979.94
  4. Step 4: Simplify right side
    11,346.30x = 124,810,570.77
  5. Step 5: Solve for x
    x = 124,810,570.77/11,346.30
  6. Step 6: Final answer
    x = 11,000.11

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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.