Home / 19,649.50-27,119.06-12,590.96

Finding the Fourth Proportional to 19,649.50, 27,119.06 and 12,590.96

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Solution

The fourth proportional to 19,649.50, 27,119.06 and 12,590.96 is: 17,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.50 : 27,119.06 = 12,590.96 : x
  2. Step 2: Convert to fraction form
    19,649.50/27,119.06 = 12,590.96/x
  3. Step 3: Cross multiply
    19,649.50x = 27,119.06 × 12,590.96
  4. Step 4: Simplify right side
    19,649.50x = 341,454,936.74
  5. Step 5: Solve for x
    x = 341,454,936.74/19,649.50
  6. Step 6: Final answer
    x = 17,377.28

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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.