Home / 12,272.25-18,491.91-10,929.53

Finding the Fourth Proportional to 12,272.25, 18,491.91 and 10,929.53

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Solution

The fourth proportional to 12,272.25, 18,491.91 and 10,929.53 is: 16,468.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.25 : 18,491.91 = 10,929.53 : x
  2. Step 2: Convert to fraction form
    12,272.25/18,491.91 = 10,929.53/x
  3. Step 3: Cross multiply
    12,272.25x = 18,491.91 × 10,929.53
  4. Step 4: Simplify right side
    12,272.25x = 202,107,792.64
  5. Step 5: Solve for x
    x = 202,107,792.64/12,272.25
  6. Step 6: Final answer
    x = 16,468.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.