Home / 13,902.11-19,186.29-7,934.68

Finding the Fourth Proportional to 13,902.11, 19,186.29 and 7,934.68

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Solution

The fourth proportional to 13,902.11, 19,186.29 and 7,934.68 is: 10,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.11 : 19,186.29 = 7,934.68 : x
  2. Step 2: Convert to fraction form
    13,902.11/19,186.29 = 7,934.68/x
  3. Step 3: Cross multiply
    13,902.11x = 19,186.29 × 7,934.68
  4. Step 4: Simplify right side
    13,902.11x = 152,237,095.52
  5. Step 5: Solve for x
    x = 152,237,095.52/13,902.11
  6. Step 6: Final answer
    x = 10,950.65

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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.