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Finding the Fourth Proportional to 6,903.72, 10,308.53 and 6,513.88

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Solution

The fourth proportional to 6,903.72, 10,308.53 and 6,513.88 is: 9,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.72 : 10,308.53 = 6,513.88 : x
  2. Step 2: Convert to fraction form
    6,903.72/10,308.53 = 6,513.88/x
  3. Step 3: Cross multiply
    6,903.72x = 10,308.53 × 6,513.88
  4. Step 4: Simplify right side
    6,903.72x = 67,148,527.40
  5. Step 5: Solve for x
    x = 67,148,527.40/6,903.72
  6. Step 6: Final answer
    x = 9,726.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.