Home / 13,572.73-20,359.14-4,807.90

Finding the Fourth Proportional to 13,572.73, 20,359.14 and 4,807.90

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Solution

The fourth proportional to 13,572.73, 20,359.14 and 4,807.90 is: 7,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.73 : 20,359.14 = 4,807.90 : x
  2. Step 2: Convert to fraction form
    13,572.73/20,359.14 = 4,807.90/x
  3. Step 3: Cross multiply
    13,572.73x = 20,359.14 × 4,807.90
  4. Step 4: Simplify right side
    13,572.73x = 97,884,709.21
  5. Step 5: Solve for x
    x = 97,884,709.21/13,572.73
  6. Step 6: Final answer
    x = 7,211.87

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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.