Home / 10,624.92-15,939.75-3,128.67

Finding the Fourth Proportional to 10,624.92, 15,939.75 and 3,128.67

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Solution

The fourth proportional to 10,624.92, 15,939.75 and 3,128.67 is: 4,693.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,624.92 : 15,939.75 = 3,128.67 : x
  2. Step 2: Convert to fraction form
    10,624.92/15,939.75 = 3,128.67/x
  3. Step 3: Cross multiply
    10,624.92x = 15,939.75 × 3,128.67
  4. Step 4: Simplify right side
    10,624.92x = 49,870,217.63
  5. Step 5: Solve for x
    x = 49,870,217.63/10,624.92
  6. Step 6: Final answer
    x = 4,693.70

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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.