Home / 12,603.07-18,916.28-6,367.47

Finding the Fourth Proportional to 12,603.07, 18,916.28 and 6,367.47

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Solution

The fourth proportional to 12,603.07, 18,916.28 and 6,367.47 is: 9,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.07 : 18,916.28 = 6,367.47 : x
  2. Step 2: Convert to fraction form
    12,603.07/18,916.28 = 6,367.47/x
  3. Step 3: Cross multiply
    12,603.07x = 18,916.28 × 6,367.47
  4. Step 4: Simplify right side
    12,603.07x = 120,448,861.33
  5. Step 5: Solve for x
    x = 120,448,861.33/12,603.07
  6. Step 6: Final answer
    x = 9,557.11

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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.