Home / 7,425.34-10,245.63-6,438.22

Finding the Fourth Proportional to 7,425.34, 10,245.63 and 6,438.22

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Solution

The fourth proportional to 7,425.34, 10,245.63 and 6,438.22 is: 8,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.34 : 10,245.63 = 6,438.22 : x
  2. Step 2: Convert to fraction form
    7,425.34/10,245.63 = 6,438.22/x
  3. Step 3: Cross multiply
    7,425.34x = 10,245.63 × 6,438.22
  4. Step 4: Simplify right side
    7,425.34x = 65,963,619.98
  5. Step 5: Solve for x
    x = 65,963,619.98/7,425.34
  6. Step 6: Final answer
    x = 8,883.58

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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.