Home / 8,070.72-11,140.74-5,085.97

Finding the Fourth Proportional to 8,070.72, 11,140.74 and 5,085.97

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Solution

The fourth proportional to 8,070.72, 11,140.74 and 5,085.97 is: 7,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.72 : 11,140.74 = 5,085.97 : x
  2. Step 2: Convert to fraction form
    8,070.72/11,140.74 = 5,085.97/x
  3. Step 3: Cross multiply
    8,070.72x = 11,140.74 × 5,085.97
  4. Step 4: Simplify right side
    8,070.72x = 56,661,469.42
  5. Step 5: Solve for x
    x = 56,661,469.42/8,070.72
  6. Step 6: Final answer
    x = 7,020.62

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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.