Home / 13,668.48-20,502.54-3,807.81

Finding the Fourth Proportional to 13,668.48, 20,502.54 and 3,807.81

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Solution

The fourth proportional to 13,668.48, 20,502.54 and 3,807.81 is: 5,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.48 : 20,502.54 = 3,807.81 : x
  2. Step 2: Convert to fraction form
    13,668.48/20,502.54 = 3,807.81/x
  3. Step 3: Cross multiply
    13,668.48x = 20,502.54 × 3,807.81
  4. Step 4: Simplify right side
    13,668.48x = 78,069,776.84
  5. Step 5: Solve for x
    x = 78,069,776.84/13,668.48
  6. Step 6: Final answer
    x = 5,711.66

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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.