Home / 7,118.80-9,823.22-4,135.27

Finding the Fourth Proportional to 7,118.80, 9,823.22 and 4,135.27

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Solution

The fourth proportional to 7,118.80, 9,823.22 and 4,135.27 is: 5,706.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.80 : 9,823.22 = 4,135.27 : x
  2. Step 2: Convert to fraction form
    7,118.80/9,823.22 = 4,135.27/x
  3. Step 3: Cross multiply
    7,118.80x = 9,823.22 × 4,135.27
  4. Step 4: Simplify right side
    7,118.80x = 40,621,637.24
  5. Step 5: Solve for x
    x = 40,621,637.24/7,118.80
  6. Step 6: Final answer
    x = 5,706.25

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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.