Home / 12,117.76-18,165.84-4,325.44

Finding the Fourth Proportional to 12,117.76, 18,165.84 and 4,325.44

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Solution

The fourth proportional to 12,117.76, 18,165.84 and 4,325.44 is: 6,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.76 : 18,165.84 = 4,325.44 : x
  2. Step 2: Convert to fraction form
    12,117.76/18,165.84 = 4,325.44/x
  3. Step 3: Cross multiply
    12,117.76x = 18,165.84 × 4,325.44
  4. Step 4: Simplify right side
    12,117.76x = 78,575,250.97
  5. Step 5: Solve for x
    x = 78,575,250.97/12,117.76
  6. Step 6: Final answer
    x = 6,484.30

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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.