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Finding the Fourth Proportional to 9,903.40, 13,675.94 and 6,372.76

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Solution

The fourth proportional to 9,903.40, 13,675.94 and 6,372.76 is: 8,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.40 : 13,675.94 = 6,372.76 : x
  2. Step 2: Convert to fraction form
    9,903.40/13,675.94 = 6,372.76/x
  3. Step 3: Cross multiply
    9,903.40x = 13,675.94 × 6,372.76
  4. Step 4: Simplify right side
    9,903.40x = 87,153,483.39
  5. Step 5: Solve for x
    x = 87,153,483.39/9,903.40
  6. Step 6: Final answer
    x = 8,800.36

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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.