Home / 13,900.14-19,182.42-7,612.11

Finding the Fourth Proportional to 13,900.14, 19,182.42 and 7,612.11

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Solution

The fourth proportional to 13,900.14, 19,182.42 and 7,612.11 is: 10,504.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.14 : 19,182.42 = 7,612.11 : x
  2. Step 2: Convert to fraction form
    13,900.14/19,182.42 = 7,612.11/x
  3. Step 3: Cross multiply
    13,900.14x = 19,182.42 × 7,612.11
  4. Step 4: Simplify right side
    13,900.14x = 146,018,691.11
  5. Step 5: Solve for x
    x = 146,018,691.11/13,900.14
  6. Step 6: Final answer
    x = 10,504.84

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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.