Home / 7,069.80-9,755.87-4,085.15

Finding the Fourth Proportional to 7,069.80, 9,755.87 and 4,085.15

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Solution

The fourth proportional to 7,069.80, 9,755.87 and 4,085.15 is: 5,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.80 : 9,755.87 = 4,085.15 : x
  2. Step 2: Convert to fraction form
    7,069.80/9,755.87 = 4,085.15/x
  3. Step 3: Cross multiply
    7,069.80x = 9,755.87 × 4,085.15
  4. Step 4: Simplify right side
    7,069.80x = 39,854,192.33
  5. Step 5: Solve for x
    x = 39,854,192.33/7,069.80
  6. Step 6: Final answer
    x = 5,637.24

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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.