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Finding the Fourth Proportional to 19,053.25, 26,290.98 and 10,987.20

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Solution

The fourth proportional to 19,053.25, 26,290.98 and 10,987.20 is: 15,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,053.25 : 26,290.98 = 10,987.20 : x
  2. Step 2: Convert to fraction form
    19,053.25/26,290.98 = 10,987.20/x
  3. Step 3: Cross multiply
    19,053.25x = 26,290.98 × 10,987.20
  4. Step 4: Simplify right side
    19,053.25x = 288,864,124.00
  5. Step 5: Solve for x
    x = 288,864,124.00/19,053.25
  6. Step 6: Final answer
    x = 15,160.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.