Home / 8,320.62-12,473.63-3,130.14

Finding the Fourth Proportional to 8,320.62, 12,473.63 and 3,130.14

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Solution

The fourth proportional to 8,320.62, 12,473.63 and 3,130.14 is: 4,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.62 : 12,473.63 = 3,130.14 : x
  2. Step 2: Convert to fraction form
    8,320.62/12,473.63 = 3,130.14/x
  3. Step 3: Cross multiply
    8,320.62x = 12,473.63 × 3,130.14
  4. Step 4: Simplify right side
    8,320.62x = 39,044,208.21
  5. Step 5: Solve for x
    x = 39,044,208.21/8,320.62
  6. Step 6: Final answer
    x = 4,692.46

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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.