Home / 15,379.75-23,070.26-7,979.45

Finding the Fourth Proportional to 15,379.75, 23,070.26 and 7,979.45

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Solution

The fourth proportional to 15,379.75, 23,070.26 and 7,979.45 is: 11,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,379.75 : 23,070.26 = 7,979.45 : x
  2. Step 2: Convert to fraction form
    15,379.75/23,070.26 = 7,979.45/x
  3. Step 3: Cross multiply
    15,379.75x = 23,070.26 × 7,979.45
  4. Step 4: Simplify right side
    15,379.75x = 184,088,063.78
  5. Step 5: Solve for x
    x = 184,088,063.78/15,379.75
  6. Step 6: Final answer
    x = 11,969.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.