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Finding the Fourth Proportional to 8,371.70, 11,530.76 and 6,240.40

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Solution

The fourth proportional to 8,371.70, 11,530.76 and 6,240.40 is: 8,595.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.70 : 11,530.76 = 6,240.40 : x
  2. Step 2: Convert to fraction form
    8,371.70/11,530.76 = 6,240.40/x
  3. Step 3: Cross multiply
    8,371.70x = 11,530.76 × 6,240.40
  4. Step 4: Simplify right side
    8,371.70x = 71,956,494.68
  5. Step 5: Solve for x
    x = 71,956,494.68/8,371.70
  6. Step 6: Final answer
    x = 8,595.21

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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.