Home / 19,918.35-27,487.08-10,965.66

Finding the Fourth Proportional to 19,918.35, 27,487.08 and 10,965.66

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Solution

The fourth proportional to 19,918.35, 27,487.08 and 10,965.66 is: 15,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.35 : 27,487.08 = 10,965.66 : x
  2. Step 2: Convert to fraction form
    19,918.35/27,487.08 = 10,965.66/x
  3. Step 3: Cross multiply
    19,918.35x = 27,487.08 × 10,965.66
  4. Step 4: Simplify right side
    19,918.35x = 301,413,973.67
  5. Step 5: Solve for x
    x = 301,413,973.67/19,918.35
  6. Step 6: Final answer
    x = 15,132.48

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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.