Home / 18,787.82-28,182.60-10,461.58

Finding the Fourth Proportional to 18,787.82, 28,182.60 and 10,461.58

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Solution

The fourth proportional to 18,787.82, 28,182.60 and 10,461.58 is: 15,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.82 : 28,182.60 = 10,461.58 : x
  2. Step 2: Convert to fraction form
    18,787.82/28,182.60 = 10,461.58/x
  3. Step 3: Cross multiply
    18,787.82x = 28,182.60 × 10,461.58
  4. Step 4: Simplify right side
    18,787.82x = 294,834,524.51
  5. Step 5: Solve for x
    x = 294,834,524.51/18,787.82
  6. Step 6: Final answer
    x = 15,692.85

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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.