Home / 13,178.13-19,769.25-5,683.81

Finding the Fourth Proportional to 13,178.13, 19,769.25 and 5,683.81

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Solution

The fourth proportional to 13,178.13, 19,769.25 and 5,683.81 is: 8,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.13 : 19,769.25 = 5,683.81 : x
  2. Step 2: Convert to fraction form
    13,178.13/19,769.25 = 5,683.81/x
  3. Step 3: Cross multiply
    13,178.13x = 19,769.25 × 5,683.81
  4. Step 4: Simplify right side
    13,178.13x = 112,364,660.84
  5. Step 5: Solve for x
    x = 112,364,660.84/13,178.13
  6. Step 6: Final answer
    x = 8,526.60

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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.