Home / 13,573.76-20,355.62-4,686.81

Finding the Fourth Proportional to 13,573.76, 20,355.62 and 4,686.81

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Solution

The fourth proportional to 13,573.76, 20,355.62 and 4,686.81 is: 7,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.76 : 20,355.62 = 4,686.81 : x
  2. Step 2: Convert to fraction form
    13,573.76/20,355.62 = 4,686.81/x
  3. Step 3: Cross multiply
    13,573.76x = 20,355.62 × 4,686.81
  4. Step 4: Simplify right side
    13,573.76x = 95,402,899.94
  5. Step 5: Solve for x
    x = 95,402,899.94/13,573.76
  6. Step 6: Final answer
    x = 7,028.48

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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.