Home / 13,813.30-19,062.30-7,844.68

Finding the Fourth Proportional to 13,813.30, 19,062.30 and 7,844.68

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Solution

The fourth proportional to 13,813.30, 19,062.30 and 7,844.68 is: 10,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.30 : 19,062.30 = 7,844.68 : x
  2. Step 2: Convert to fraction form
    13,813.30/19,062.30 = 7,844.68/x
  3. Step 3: Cross multiply
    13,813.30x = 19,062.30 × 7,844.68
  4. Step 4: Simplify right side
    13,813.30x = 149,537,643.56
  5. Step 5: Solve for x
    x = 149,537,643.56/13,813.30
  6. Step 6: Final answer
    x = 10,825.63

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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.