Home / 19,774.98-27,288.63-11,821.59

Finding the Fourth Proportional to 19,774.98, 27,288.63 and 11,821.59

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Solution

The fourth proportional to 19,774.98, 27,288.63 and 11,821.59 is: 16,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.98 : 27,288.63 = 11,821.59 : x
  2. Step 2: Convert to fraction form
    19,774.98/27,288.63 = 11,821.59/x
  3. Step 3: Cross multiply
    19,774.98x = 27,288.63 × 11,821.59
  4. Step 4: Simplify right side
    19,774.98x = 322,594,995.52
  5. Step 5: Solve for x
    x = 322,594,995.52/19,774.98
  6. Step 6: Final answer
    x = 16,313.29

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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.