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Finding the Fourth Proportional to 17,991.52, 26,987.28 and 7,603.36

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Solution

The fourth proportional to 17,991.52, 26,987.28 and 7,603.36 is: 11,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.52 : 26,987.28 = 7,603.36 : x
  2. Step 2: Convert to fraction form
    17,991.52/26,987.28 = 7,603.36/x
  3. Step 3: Cross multiply
    17,991.52x = 26,987.28 × 7,603.36
  4. Step 4: Simplify right side
    17,991.52x = 205,194,005.26
  5. Step 5: Solve for x
    x = 205,194,005.26/17,991.52
  6. Step 6: Final answer
    x = 11,405.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.