Home / 13,903.72-20,858.66-7,660.52

Finding the Fourth Proportional to 13,903.72, 20,858.66 and 7,660.52

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Solution

The fourth proportional to 13,903.72, 20,858.66 and 7,660.52 is: 11,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.72 : 20,858.66 = 7,660.52 : x
  2. Step 2: Convert to fraction form
    13,903.72/20,858.66 = 7,660.52/x
  3. Step 3: Cross multiply
    13,903.72x = 20,858.66 × 7,660.52
  4. Step 4: Simplify right side
    13,903.72x = 159,788,143.80
  5. Step 5: Solve for x
    x = 159,788,143.80/13,903.72
  6. Step 6: Final answer
    x = 11,492.47

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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.