Home / 13,650.48-20,478.60-4,291.45

Finding the Fourth Proportional to 13,650.48, 20,478.60 and 4,291.45

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Solution

The fourth proportional to 13,650.48, 20,478.60 and 4,291.45 is: 6,438.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.48 : 20,478.60 = 4,291.45 : x
  2. Step 2: Convert to fraction form
    13,650.48/20,478.60 = 4,291.45/x
  3. Step 3: Cross multiply
    13,650.48x = 20,478.60 × 4,291.45
  4. Step 4: Simplify right side
    13,650.48x = 87,882,836.77
  5. Step 5: Solve for x
    x = 87,882,836.77/13,650.48
  6. Step 6: Final answer
    x = 6,438.08

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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.