Home / 12,117.91-18,176.87-3,798.58

Finding the Fourth Proportional to 12,117.91, 18,176.87 and 3,798.58

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Solution

The fourth proportional to 12,117.91, 18,176.87 and 3,798.58 is: 5,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.91 : 18,176.87 = 3,798.58 : x
  2. Step 2: Convert to fraction form
    12,117.91/18,176.87 = 3,798.58/x
  3. Step 3: Cross multiply
    12,117.91x = 18,176.87 × 3,798.58
  4. Step 4: Simplify right side
    12,117.91x = 69,046,294.84
  5. Step 5: Solve for x
    x = 69,046,294.84/12,117.91
  6. Step 6: Final answer
    x = 5,697.87

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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.