Home / 19,918.59-27,487.44-10,965.90

Finding the Fourth Proportional to 19,918.59, 27,487.44 and 10,965.90

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Solution

The fourth proportional to 19,918.59, 27,487.44 and 10,965.90 is: 15,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.59 : 27,487.44 = 10,965.90 : x
  2. Step 2: Convert to fraction form
    19,918.59/27,487.44 = 10,965.90/x
  3. Step 3: Cross multiply
    19,918.59x = 27,487.44 × 10,965.90
  4. Step 4: Simplify right side
    19,918.59x = 301,424,518.30
  5. Step 5: Solve for x
    x = 301,424,518.30/19,918.59
  6. Step 6: Final answer
    x = 15,132.82

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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.