Home / 19,919.48-27,489.74-11,962.36

Finding the Fourth Proportional to 19,919.48, 27,489.74 and 11,962.36

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Solution

The fourth proportional to 19,919.48, 27,489.74 and 11,962.36 is: 16,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.48 : 27,489.74 = 11,962.36 : x
  2. Step 2: Convert to fraction form
    19,919.48/27,489.74 = 11,962.36/x
  3. Step 3: Cross multiply
    19,919.48x = 27,489.74 × 11,962.36
  4. Step 4: Simplify right side
    19,919.48x = 328,842,166.19
  5. Step 5: Solve for x
    x = 328,842,166.19/19,919.48
  6. Step 6: Final answer
    x = 16,508.57

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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.