Home / 19,759.40-27,267.99-11,145.69

Finding the Fourth Proportional to 19,759.40, 27,267.99 and 11,145.69

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Solution

The fourth proportional to 19,759.40, 27,267.99 and 11,145.69 is: 15,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.40 : 27,267.99 = 11,145.69 : x
  2. Step 2: Convert to fraction form
    19,759.40/27,267.99 = 11,145.69/x
  3. Step 3: Cross multiply
    19,759.40x = 27,267.99 × 11,145.69
  4. Step 4: Simplify right side
    19,759.40x = 303,920,521.67
  5. Step 5: Solve for x
    x = 303,920,521.67/19,759.40
  6. Step 6: Final answer
    x = 15,381.06

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Half scale
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Double scale
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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.