Home / 14,136.10-21,209.64-6,339.40

Finding the Fourth Proportional to 14,136.10, 21,209.64 and 6,339.40

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Solution

The fourth proportional to 14,136.10, 21,209.64 and 6,339.40 is: 9,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.10 : 21,209.64 = 6,339.40 : x
  2. Step 2: Convert to fraction form
    14,136.10/21,209.64 = 6,339.40/x
  3. Step 3: Cross multiply
    14,136.10x = 21,209.64 × 6,339.40
  4. Step 4: Simplify right side
    14,136.10x = 134,456,391.82
  5. Step 5: Solve for x
    x = 134,456,391.82/14,136.10
  6. Step 6: Final answer
    x = 9,511.56

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1.5x scale

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.