Home / 14,974.72-20,660.10-9,673.12

Finding the Fourth Proportional to 14,974.72, 20,660.10 and 9,673.12

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Solution

The fourth proportional to 14,974.72, 20,660.10 and 9,673.12 is: 13,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.72 : 20,660.10 = 9,673.12 : x
  2. Step 2: Convert to fraction form
    14,974.72/20,660.10 = 9,673.12/x
  3. Step 3: Cross multiply
    14,974.72x = 20,660.10 × 9,673.12
  4. Step 4: Simplify right side
    14,974.72x = 199,847,626.51
  5. Step 5: Solve for x
    x = 199,847,626.51/14,974.72
  6. Step 6: Final answer
    x = 13,345.67

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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.