Home / 10,441.47-15,664.76-3,421.86

Finding the Fourth Proportional to 10,441.47, 15,664.76 and 3,421.86

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Solution

The fourth proportional to 10,441.47, 15,664.76 and 3,421.86 is: 5,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,441.47 : 15,664.76 = 3,421.86 : x
  2. Step 2: Convert to fraction form
    10,441.47/15,664.76 = 3,421.86/x
  3. Step 3: Cross multiply
    10,441.47x = 15,664.76 × 3,421.86
  4. Step 4: Simplify right side
    10,441.47x = 53,602,520.22
  5. Step 5: Solve for x
    x = 53,602,520.22/10,441.47
  6. Step 6: Final answer
    x = 5,133.62

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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.