Home / 7,475.12-10,315.38-4,286.22

Finding the Fourth Proportional to 7,475.12, 10,315.38 and 4,286.22

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Solution

The fourth proportional to 7,475.12, 10,315.38 and 4,286.22 is: 5,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.12 : 10,315.38 = 4,286.22 : x
  2. Step 2: Convert to fraction form
    7,475.12/10,315.38 = 4,286.22/x
  3. Step 3: Cross multiply
    7,475.12x = 10,315.38 × 4,286.22
  4. Step 4: Simplify right side
    7,475.12x = 44,213,965.45
  5. Step 5: Solve for x
    x = 44,213,965.45/7,475.12
  6. Step 6: Final answer
    x = 5,914.82

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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.