Home / 12,165.32-18,247.98-2,931.32

Finding the Fourth Proportional to 12,165.32, 18,247.98 and 2,931.32

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Solution

The fourth proportional to 12,165.32, 18,247.98 and 2,931.32 is: 4,396.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165.32 : 18,247.98 = 2,931.32 : x
  2. Step 2: Convert to fraction form
    12,165.32/18,247.98 = 2,931.32/x
  3. Step 3: Cross multiply
    12,165.32x = 18,247.98 × 2,931.32
  4. Step 4: Simplify right side
    12,165.32x = 53,490,668.73
  5. Step 5: Solve for x
    x = 53,490,668.73/12,165.32
  6. Step 6: Final answer
    x = 4,396.98

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Similar ratio
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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.