Home / 19,164.80-26,447.38-10,781.30

Finding the Fourth Proportional to 19,164.80, 26,447.38 and 10,781.30

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Solution

The fourth proportional to 19,164.80, 26,447.38 and 10,781.30 is: 14,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.80 : 26,447.38 = 10,781.30 : x
  2. Step 2: Convert to fraction form
    19,164.80/26,447.38 = 10,781.30/x
  3. Step 3: Cross multiply
    19,164.80x = 26,447.38 × 10,781.30
  4. Step 4: Simplify right side
    19,164.80x = 285,137,137.99
  5. Step 5: Solve for x
    x = 285,137,137.99/19,164.80
  6. Step 6: Final answer
    x = 14,878.17

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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.