Home / 10,728.14-14,813.85-8,070.94

Finding the Fourth Proportional to 10,728.14, 14,813.85 and 8,070.94

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Solution

The fourth proportional to 10,728.14, 14,813.85 and 8,070.94 is: 11,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.14 : 14,813.85 = 8,070.94 : x
  2. Step 2: Convert to fraction form
    10,728.14/14,813.85 = 8,070.94/x
  3. Step 3: Cross multiply
    10,728.14x = 14,813.85 × 8,070.94
  4. Step 4: Simplify right side
    10,728.14x = 119,561,694.52
  5. Step 5: Solve for x
    x = 119,561,694.52/10,728.14
  6. Step 6: Final answer
    x = 11,144.68

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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.