Home / 12,103.29-18,154.95-3,783.35

Finding the Fourth Proportional to 12,103.29, 18,154.95 and 3,783.35

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Solution

The fourth proportional to 12,103.29, 18,154.95 and 3,783.35 is: 5,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.29 : 18,154.95 = 3,783.35 : x
  2. Step 2: Convert to fraction form
    12,103.29/18,154.95 = 3,783.35/x
  3. Step 3: Cross multiply
    12,103.29x = 18,154.95 × 3,783.35
  4. Step 4: Simplify right side
    12,103.29x = 68,686,511.17
  5. Step 5: Solve for x
    x = 68,686,511.17/12,103.29
  6. Step 6: Final answer
    x = 5,675.03

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Double scale
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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.