Home / 10,749.48-14,819.68-8,064.80

Finding the Fourth Proportional to 10,749.48, 14,819.68 and 8,064.80

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Solution

The fourth proportional to 10,749.48, 14,819.68 and 8,064.80 is: 11,118.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,749.48 : 14,819.68 = 8,064.80 : x
  2. Step 2: Convert to fraction form
    10,749.48/14,819.68 = 8,064.80/x
  3. Step 3: Cross multiply
    10,749.48x = 14,819.68 × 8,064.80
  4. Step 4: Simplify right side
    10,749.48x = 119,517,755.26
  5. Step 5: Solve for x
    x = 119,517,755.26/10,749.48
  6. Step 6: Final answer
    x = 11,118.47

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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.