Home / 13,979.66-19,291.92-8,011.04

Finding the Fourth Proportional to 13,979.66, 19,291.92 and 8,011.04

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Solution

The fourth proportional to 13,979.66, 19,291.92 and 8,011.04 is: 11,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.66 : 19,291.92 = 8,011.04 : x
  2. Step 2: Convert to fraction form
    13,979.66/19,291.92 = 8,011.04/x
  3. Step 3: Cross multiply
    13,979.66x = 19,291.92 × 8,011.04
  4. Step 4: Simplify right side
    13,979.66x = 154,548,342.80
  5. Step 5: Solve for x
    x = 154,548,342.80/13,979.66
  6. Step 6: Final answer
    x = 11,055.23

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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.