Home / 18,030.40-27,059.54-11,788.72

Finding the Fourth Proportional to 18,030.40, 27,059.54 and 11,788.72

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Solution

The fourth proportional to 18,030.40, 27,059.54 and 11,788.72 is: 17,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.40 : 27,059.54 = 11,788.72 : x
  2. Step 2: Convert to fraction form
    18,030.40/27,059.54 = 11,788.72/x
  3. Step 3: Cross multiply
    18,030.40x = 27,059.54 × 11,788.72
  4. Step 4: Simplify right side
    18,030.40x = 318,997,340.39
  5. Step 5: Solve for x
    x = 318,997,340.39/18,030.40
  6. Step 6: Final answer
    x = 17,692.19

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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.