Home / 12,251.66-18,376.47-3,929.45

Finding the Fourth Proportional to 12,251.66, 18,376.47 and 3,929.45

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Solution

The fourth proportional to 12,251.66, 18,376.47 and 3,929.45 is: 5,893.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251.66 : 18,376.47 = 3,929.45 : x
  2. Step 2: Convert to fraction form
    12,251.66/18,376.47 = 3,929.45/x
  3. Step 3: Cross multiply
    12,251.66x = 18,376.47 × 3,929.45
  4. Step 4: Simplify right side
    12,251.66x = 72,209,328.16
  5. Step 5: Solve for x
    x = 72,209,328.16/12,251.66
  6. Step 6: Final answer
    x = 5,893.84

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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.