Home / 13,930.14-19,223.52-7,642.38

Finding the Fourth Proportional to 13,930.14, 19,223.52 and 7,642.38

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Solution

The fourth proportional to 13,930.14, 19,223.52 and 7,642.38 is: 10,546.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.14 : 19,223.52 = 7,642.38 : x
  2. Step 2: Convert to fraction form
    13,930.14/19,223.52 = 7,642.38/x
  3. Step 3: Cross multiply
    13,930.14x = 19,223.52 × 7,642.38
  4. Step 4: Simplify right side
    13,930.14x = 146,913,444.78
  5. Step 5: Solve for x
    x = 146,913,444.78/13,930.14
  6. Step 6: Final answer
    x = 10,546.44

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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.