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Finding the Fourth Proportional to 12,003.58, 17,985.93 and 9,087.58

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Solution

The fourth proportional to 12,003.58, 17,985.93 and 9,087.58 is: 13,616.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.58 : 17,985.93 = 9,087.58 : x
  2. Step 2: Convert to fraction form
    12,003.58/17,985.93 = 9,087.58/x
  3. Step 3: Cross multiply
    12,003.58x = 17,985.93 × 9,087.58
  4. Step 4: Simplify right side
    12,003.58x = 163,448,577.75
  5. Step 5: Solve for x
    x = 163,448,577.75/12,003.58
  6. Step 6: Final answer
    x = 13,616.65

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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.