Home / 13,710.47-20,565.71-4,945.38

Finding the Fourth Proportional to 13,710.47, 20,565.71 and 4,945.38

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Solution

The fourth proportional to 13,710.47, 20,565.71 and 4,945.38 is: 7,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.47 : 20,565.71 = 4,945.38 : x
  2. Step 2: Convert to fraction form
    13,710.47/20,565.71 = 4,945.38/x
  3. Step 3: Cross multiply
    13,710.47x = 20,565.71 × 4,945.38
  4. Step 4: Simplify right side
    13,710.47x = 101,705,269.39
  5. Step 5: Solve for x
    x = 101,705,269.39/13,710.47
  6. Step 6: Final answer
    x = 7,418.07

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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.