Home / 13,574.54-20,356.80-4,687.61

Finding the Fourth Proportional to 13,574.54, 20,356.80 and 4,687.61

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Solution

The fourth proportional to 13,574.54, 20,356.80 and 4,687.61 is: 7,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.54 : 20,356.80 = 4,687.61 : x
  2. Step 2: Convert to fraction form
    13,574.54/20,356.80 = 4,687.61/x
  3. Step 3: Cross multiply
    13,574.54x = 20,356.80 × 4,687.61
  4. Step 4: Simplify right side
    13,574.54x = 95,424,637.46
  5. Step 5: Solve for x
    x = 95,424,637.46/13,574.54
  6. Step 6: Final answer
    x = 7,029.68

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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.