Home / 13,015.13-17,963.31-7,426.13

Finding the Fourth Proportional to 13,015.13, 17,963.31 and 7,426.13

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Solution

The fourth proportional to 13,015.13, 17,963.31 and 7,426.13 is: 10,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.13 : 17,963.31 = 7,426.13 : x
  2. Step 2: Convert to fraction form
    13,015.13/17,963.31 = 7,426.13/x
  3. Step 3: Cross multiply
    13,015.13x = 17,963.31 × 7,426.13
  4. Step 4: Simplify right side
    13,015.13x = 133,397,875.29
  5. Step 5: Solve for x
    x = 133,397,875.29/13,015.13
  6. Step 6: Final answer
    x = 10,249.45

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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.