Home / 10,435.44-15,655.76-3,415.88

Finding the Fourth Proportional to 10,435.44, 15,655.76 and 3,415.88

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Solution

The fourth proportional to 10,435.44, 15,655.76 and 3,415.88 is: 5,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.44 : 15,655.76 = 3,415.88 : x
  2. Step 2: Convert to fraction form
    10,435.44/15,655.76 = 3,415.88/x
  3. Step 3: Cross multiply
    10,435.44x = 15,655.76 × 3,415.88
  4. Step 4: Simplify right side
    10,435.44x = 53,478,197.47
  5. Step 5: Solve for x
    x = 53,478,197.47/10,435.44
  6. Step 6: Final answer
    x = 5,124.67

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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.