Home / 14,328.57-19,768.68-8,665.05

Finding the Fourth Proportional to 14,328.57, 19,768.68 and 8,665.05

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Solution

The fourth proportional to 14,328.57, 19,768.68 and 8,665.05 is: 11,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.57 : 19,768.68 = 8,665.05 : x
  2. Step 2: Convert to fraction form
    14,328.57/19,768.68 = 8,665.05/x
  3. Step 3: Cross multiply
    14,328.57x = 19,768.68 × 8,665.05
  4. Step 4: Simplify right side
    14,328.57x = 171,296,600.63
  5. Step 5: Solve for x
    x = 171,296,600.63/14,328.57
  6. Step 6: Final answer
    x = 11,954.90

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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.