Home / 8,103.04-12,156.45-3,423.47

Finding the Fourth Proportional to 8,103.04, 12,156.45 and 3,423.47

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Solution

The fourth proportional to 8,103.04, 12,156.45 and 3,423.47 is: 5,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.04 : 12,156.45 = 3,423.47 : x
  2. Step 2: Convert to fraction form
    8,103.04/12,156.45 = 3,423.47/x
  3. Step 3: Cross multiply
    8,103.04x = 12,156.45 × 3,423.47
  4. Step 4: Simplify right side
    8,103.04x = 41,617,168.26
  5. Step 5: Solve for x
    x = 41,617,168.26/8,103.04
  6. Step 6: Final answer
    x = 5,136.00

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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.