Home / 14,775.24-20,389.79-8,060.80

Finding the Fourth Proportional to 14,775.24, 20,389.79 and 8,060.80

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Solution

The fourth proportional to 14,775.24, 20,389.79 and 8,060.80 is: 11,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.24 : 20,389.79 = 8,060.80 : x
  2. Step 2: Convert to fraction form
    14,775.24/20,389.79 = 8,060.80/x
  3. Step 3: Cross multiply
    14,775.24x = 20,389.79 × 8,060.80
  4. Step 4: Simplify right side
    14,775.24x = 164,358,078.65
  5. Step 5: Solve for x
    x = 164,358,078.65/14,775.24
  6. Step 6: Final answer
    x = 11,123.89

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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.