Home / 12,587.94-18,882.39-4,692.42

Finding the Fourth Proportional to 12,587.94, 18,882.39 and 4,692.42

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Solution

The fourth proportional to 12,587.94, 18,882.39 and 4,692.42 is: 7,038.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.94 : 18,882.39 = 4,692.42 : x
  2. Step 2: Convert to fraction form
    12,587.94/18,882.39 = 4,692.42/x
  3. Step 3: Cross multiply
    12,587.94x = 18,882.39 × 4,692.42
  4. Step 4: Simplify right side
    12,587.94x = 88,604,104.48
  5. Step 5: Solve for x
    x = 88,604,104.48/12,587.94
  6. Step 6: Final answer
    x = 7,038.81

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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.