Home / 14,772.14-20,385.72-8,057.72

Finding the Fourth Proportional to 14,772.14, 20,385.72 and 8,057.72

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Solution

The fourth proportional to 14,772.14, 20,385.72 and 8,057.72 is: 11,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.14 : 20,385.72 = 8,057.72 : x
  2. Step 2: Convert to fraction form
    14,772.14/20,385.72 = 8,057.72/x
  3. Step 3: Cross multiply
    14,772.14x = 20,385.72 × 8,057.72
  4. Step 4: Simplify right side
    14,772.14x = 164,262,423.76
  5. Step 5: Solve for x
    x = 164,262,423.76/14,772.14
  6. Step 6: Final answer
    x = 11,119.74

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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.