Home / 14,140.80-19,514.84-7,767.92

Finding the Fourth Proportional to 14,140.80, 19,514.84 and 7,767.92

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Solution

The fourth proportional to 14,140.80, 19,514.84 and 7,767.92 is: 10,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.80 : 19,514.84 = 7,767.92 : x
  2. Step 2: Convert to fraction form
    14,140.80/19,514.84 = 7,767.92/x
  3. Step 3: Cross multiply
    14,140.80x = 19,514.84 × 7,767.92
  4. Step 4: Simplify right side
    14,140.80x = 151,589,579.52
  5. Step 5: Solve for x
    x = 151,589,579.52/14,140.80
  6. Step 6: Final answer
    x = 10,720.01

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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.