Home / 13,530.81-20,302.71-4,769.85

Finding the Fourth Proportional to 13,530.81, 20,302.71 and 4,769.85

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Solution

The fourth proportional to 13,530.81, 20,302.71 and 4,769.85 is: 7,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.81 : 20,302.71 = 4,769.85 : x
  2. Step 2: Convert to fraction form
    13,530.81/20,302.71 = 4,769.85/x
  3. Step 3: Cross multiply
    13,530.81x = 20,302.71 × 4,769.85
  4. Step 4: Simplify right side
    13,530.81x = 96,840,881.29
  5. Step 5: Solve for x
    x = 96,840,881.29/13,530.81
  6. Step 6: Final answer
    x = 7,157.06

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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.