Home / 12,167.28-18,253.44-4,271.04

Finding the Fourth Proportional to 12,167.28, 18,253.44 and 4,271.04

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Solution

The fourth proportional to 12,167.28, 18,253.44 and 4,271.04 is: 6,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.28 : 18,253.44 = 4,271.04 : x
  2. Step 2: Convert to fraction form
    12,167.28/18,253.44 = 4,271.04/x
  3. Step 3: Cross multiply
    12,167.28x = 18,253.44 × 4,271.04
  4. Step 4: Simplify right side
    12,167.28x = 77,961,172.38
  5. Step 5: Solve for x
    x = 77,961,172.38/12,167.28
  6. Step 6: Final answer
    x = 6,407.44

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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.