Home / 10,100.54-15,151.43-4,257.61

Finding the Fourth Proportional to 10,100.54, 15,151.43 and 4,257.61

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Solution

The fourth proportional to 10,100.54, 15,151.43 and 4,257.61 is: 6,386.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.54 : 15,151.43 = 4,257.61 : x
  2. Step 2: Convert to fraction form
    10,100.54/15,151.43 = 4,257.61/x
  3. Step 3: Cross multiply
    10,100.54x = 15,151.43 × 4,257.61
  4. Step 4: Simplify right side
    10,100.54x = 64,508,852.65
  5. Step 5: Solve for x
    x = 64,508,852.65/10,100.54
  6. Step 6: Final answer
    x = 6,386.67

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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.