Home / 13,979.23-19,281.24-8,008.72

Finding the Fourth Proportional to 13,979.23, 19,281.24 and 8,008.72

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Solution

The fourth proportional to 13,979.23, 19,281.24 and 8,008.72 is: 11,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.23 : 19,281.24 = 8,008.72 : x
  2. Step 2: Convert to fraction form
    13,979.23/19,281.24 = 8,008.72/x
  3. Step 3: Cross multiply
    13,979.23x = 19,281.24 × 8,008.72
  4. Step 4: Simplify right side
    13,979.23x = 154,418,004.21
  5. Step 5: Solve for x
    x = 154,418,004.21/13,979.23
  6. Step 6: Final answer
    x = 11,046.25

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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.