Home / 14,389.38-19,857.24-8,101.74

Finding the Fourth Proportional to 14,389.38, 19,857.24 and 8,101.74

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Solution

The fourth proportional to 14,389.38, 19,857.24 and 8,101.74 is: 11,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.38 : 19,857.24 = 8,101.74 : x
  2. Step 2: Convert to fraction form
    14,389.38/19,857.24 = 8,101.74/x
  3. Step 3: Cross multiply
    14,389.38x = 19,857.24 × 8,101.74
  4. Step 4: Simplify right side
    14,389.38x = 160,878,195.60
  5. Step 5: Solve for x
    x = 160,878,195.60/14,389.38
  6. Step 6: Final answer
    x = 11,180.34

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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.