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Finding the Fourth Proportional to 8,910.70, 13,370.65 and 6,465.68

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Solution

The fourth proportional to 8,910.70, 13,370.65 and 6,465.68 is: 9,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.70 : 13,370.65 = 6,465.68 : x
  2. Step 2: Convert to fraction form
    8,910.70/13,370.65 = 6,465.68/x
  3. Step 3: Cross multiply
    8,910.70x = 13,370.65 × 6,465.68
  4. Step 4: Simplify right side
    8,910.70x = 86,450,344.29
  5. Step 5: Solve for x
    x = 86,450,344.29/8,910.70
  6. Step 6: Final answer
    x = 9,701.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.