Home / 8,239.50-12,358.87-2,692.15

Finding the Fourth Proportional to 8,239.50, 12,358.87 and 2,692.15

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Solution

The fourth proportional to 8,239.50, 12,358.87 and 2,692.15 is: 4,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.50 : 12,358.87 = 2,692.15 : x
  2. Step 2: Convert to fraction form
    8,239.50/12,358.87 = 2,692.15/x
  3. Step 3: Cross multiply
    8,239.50x = 12,358.87 × 2,692.15
  4. Step 4: Simplify right side
    8,239.50x = 33,271,894.24
  5. Step 5: Solve for x
    x = 33,271,894.24/8,239.50
  6. Step 6: Final answer
    x = 4,038.10

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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.