Home / 12,027.90-18,005.40-9,087.60

Finding the Fourth Proportional to 12,027.90, 18,005.40 and 9,087.60

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Solution

The fourth proportional to 12,027.90, 18,005.40 and 9,087.60 is: 13,603.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027.90 : 18,005.40 = 9,087.60 : x
  2. Step 2: Convert to fraction form
    12,027.90/18,005.40 = 9,087.60/x
  3. Step 3: Cross multiply
    12,027.90x = 18,005.40 × 9,087.60
  4. Step 4: Simplify right side
    12,027.90x = 163,625,873.04
  5. Step 5: Solve for x
    x = 163,625,873.04/12,027.90
  6. Step 6: Final answer
    x = 13,603.86

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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.