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Finding the Fourth Proportional to 8,971.57, 13,457.05 and 4,819.68

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Solution

The fourth proportional to 8,971.57, 13,457.05 and 4,819.68 is: 7,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.57 : 13,457.05 = 4,819.68 : x
  2. Step 2: Convert to fraction form
    8,971.57/13,457.05 = 4,819.68/x
  3. Step 3: Cross multiply
    8,971.57x = 13,457.05 × 4,819.68
  4. Step 4: Simplify right side
    8,971.57x = 64,858,674.74
  5. Step 5: Solve for x
    x = 64,858,674.74/8,971.57
  6. Step 6: Final answer
    x = 7,229.36

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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.