Home / 13,132.72-19,688.72-6,555.52

Finding the Fourth Proportional to 13,132.72, 19,688.72 and 6,555.52

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Solution

The fourth proportional to 13,132.72, 19,688.72 and 6,555.52 is: 9,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.72 : 19,688.72 = 6,555.52 : x
  2. Step 2: Convert to fraction form
    13,132.72/19,688.72 = 6,555.52/x
  3. Step 3: Cross multiply
    13,132.72x = 19,688.72 × 6,555.52
  4. Step 4: Simplify right side
    13,132.72x = 129,069,797.73
  5. Step 5: Solve for x
    x = 129,069,797.73/13,132.72
  6. Step 6: Final answer
    x = 9,828.11

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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.