Home / 13,147.08-19,726.38-6,905.65

Finding the Fourth Proportional to 13,147.08, 19,726.38 and 6,905.65

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Solution

The fourth proportional to 13,147.08, 19,726.38 and 6,905.65 is: 10,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.08 : 19,726.38 = 6,905.65 : x
  2. Step 2: Convert to fraction form
    13,147.08/19,726.38 = 6,905.65/x
  3. Step 3: Cross multiply
    13,147.08x = 19,726.38 × 6,905.65
  4. Step 4: Simplify right side
    13,147.08x = 136,223,377.42
  5. Step 5: Solve for x
    x = 136,223,377.42/13,147.08
  6. Step 6: Final answer
    x = 10,361.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.