Home / 13,545.10-20,310-6,324.40

Finding the Fourth Proportional to 13,545.10, 20,310 and 6,324.40

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Solution

The fourth proportional to 13,545.10, 20,310 and 6,324.40 is: 9,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.10 : 20,310 = 6,324.40 : x
  2. Step 2: Convert to fraction form
    13,545.10/20,310 = 6,324.40/x
  3. Step 3: Cross multiply
    13,545.10x = 20,310 × 6,324.40
  4. Step 4: Simplify right side
    13,545.10x = 128,448,564
  5. Step 5: Solve for x
    x = 128,448,564/13,545.10
  6. Step 6: Final answer
    x = 9,483.03

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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.