Home / 11,172.10-15,417.88-6,136.44

Finding the Fourth Proportional to 11,172.10, 15,417.88 and 6,136.44

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Solution

The fourth proportional to 11,172.10, 15,417.88 and 6,136.44 is: 8,468.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.10 : 15,417.88 = 6,136.44 : x
  2. Step 2: Convert to fraction form
    11,172.10/15,417.88 = 6,136.44/x
  3. Step 3: Cross multiply
    11,172.10x = 15,417.88 × 6,136.44
  4. Step 4: Simplify right side
    11,172.10x = 94,610,895.55
  5. Step 5: Solve for x
    x = 94,610,895.55/11,172.10
  6. Step 6: Final answer
    x = 8,468.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.