Home / 10,489.54-14,475.84-5,709.80

Finding the Fourth Proportional to 10,489.54, 14,475.84 and 5,709.80

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Solution

The fourth proportional to 10,489.54, 14,475.84 and 5,709.80 is: 7,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.54 : 14,475.84 = 5,709.80 : x
  2. Step 2: Convert to fraction form
    10,489.54/14,475.84 = 5,709.80/x
  3. Step 3: Cross multiply
    10,489.54x = 14,475.84 × 5,709.80
  4. Step 4: Simplify right side
    10,489.54x = 82,654,151.23
  5. Step 5: Solve for x
    x = 82,654,151.23/10,489.54
  6. Step 6: Final answer
    x = 7,879.67

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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.