Home / 14,979.22-20,689.73-11,219.19

Finding the Fourth Proportional to 14,979.22, 20,689.73 and 11,219.19

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Solution

The fourth proportional to 14,979.22, 20,689.73 and 11,219.19 is: 15,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.22 : 20,689.73 = 11,219.19 : x
  2. Step 2: Convert to fraction form
    14,979.22/20,689.73 = 11,219.19/x
  3. Step 3: Cross multiply
    14,979.22x = 20,689.73 × 11,219.19
  4. Step 4: Simplify right side
    14,979.22x = 232,122,011.92
  5. Step 5: Solve for x
    x = 232,122,011.92/14,979.22
  6. Step 6: Final answer
    x = 15,496.27

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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.