Home / 13,230.72-19,846.50-6,653.31

Finding the Fourth Proportional to 13,230.72, 19,846.50 and 6,653.31

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Solution

The fourth proportional to 13,230.72, 19,846.50 and 6,653.31 is: 9,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.72 : 19,846.50 = 6,653.31 : x
  2. Step 2: Convert to fraction form
    13,230.72/19,846.50 = 6,653.31/x
  3. Step 3: Cross multiply
    13,230.72x = 19,846.50 × 6,653.31
  4. Step 4: Simplify right side
    13,230.72x = 132,044,916.92
  5. Step 5: Solve for x
    x = 132,044,916.92/13,230.72
  6. Step 6: Final answer
    x = 9,980.18

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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.