Home / 7,638.35-10,540.26-4,655.12

Finding the Fourth Proportional to 7,638.35, 10,540.26 and 4,655.12

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Solution

The fourth proportional to 7,638.35, 10,540.26 and 4,655.12 is: 6,423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.35 : 10,540.26 = 4,655.12 : x
  2. Step 2: Convert to fraction form
    7,638.35/10,540.26 = 4,655.12/x
  3. Step 3: Cross multiply
    7,638.35x = 10,540.26 × 4,655.12
  4. Step 4: Simplify right side
    7,638.35x = 49,066,122.43
  5. Step 5: Solve for x
    x = 49,066,122.43/7,638.35
  6. Step 6: Final answer
    x = 6,423.66

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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.