Home / 10,739.94-14,819.49-6,140.38

Finding the Fourth Proportional to 10,739.94, 14,819.49 and 6,140.38

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Solution

The fourth proportional to 10,739.94, 14,819.49 and 6,140.38 is: 8,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,739.94 : 14,819.49 = 6,140.38 : x
  2. Step 2: Convert to fraction form
    10,739.94/14,819.49 = 6,140.38/x
  3. Step 3: Cross multiply
    10,739.94x = 14,819.49 × 6,140.38
  4. Step 4: Simplify right side
    10,739.94x = 90,997,300.01
  5. Step 5: Solve for x
    x = 90,997,300.01/10,739.94
  6. Step 6: Final answer
    x = 8,472.79

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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.