Home / 14,405.04-21,578.40-11,255.76

Finding the Fourth Proportional to 14,405.04, 21,578.40 and 11,255.76

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Solution

The fourth proportional to 14,405.04, 21,578.40 and 11,255.76 is: 16,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,405.04 : 21,578.40 = 11,255.76 : x
  2. Step 2: Convert to fraction form
    14,405.04/21,578.40 = 11,255.76/x
  3. Step 3: Cross multiply
    14,405.04x = 21,578.40 × 11,255.76
  4. Step 4: Simplify right side
    14,405.04x = 242,881,291.58
  5. Step 5: Solve for x
    x = 242,881,291.58/14,405.04
  6. Step 6: Final answer
    x = 16,860.86

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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.