Home / 14,065.09-19,409.55-7,691.51

Finding the Fourth Proportional to 14,065.09, 19,409.55 and 7,691.51

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Solution

The fourth proportional to 14,065.09, 19,409.55 and 7,691.51 is: 10,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.09 : 19,409.55 = 7,691.51 : x
  2. Step 2: Convert to fraction form
    14,065.09/19,409.55 = 7,691.51/x
  3. Step 3: Cross multiply
    14,065.09x = 19,409.55 × 7,691.51
  4. Step 4: Simplify right side
    14,065.09x = 149,288,680.05
  5. Step 5: Solve for x
    x = 149,288,680.05/14,065.09
  6. Step 6: Final answer
    x = 10,614.13

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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.