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Finding the Fourth Proportional to 17,991.37, 26,980.57 and 7,603.93

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Solution

The fourth proportional to 17,991.37, 26,980.57 and 7,603.93 is: 11,403.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.37 : 26,980.57 = 7,603.93 : x
  2. Step 2: Convert to fraction form
    17,991.37/26,980.57 = 7,603.93/x
  3. Step 3: Cross multiply
    17,991.37x = 26,980.57 × 7,603.93
  4. Step 4: Simplify right side
    17,991.37x = 205,158,279.18
  5. Step 5: Solve for x
    x = 205,158,279.18/17,991.37
  6. Step 6: Final answer
    x = 11,403.15

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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.