Home / 12,484.60-18,724.85-4,164.68

Finding the Fourth Proportional to 12,484.60, 18,724.85 and 4,164.68

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Solution

The fourth proportional to 12,484.60, 18,724.85 and 4,164.68 is: 6,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484.60 : 18,724.85 = 4,164.68 : x
  2. Step 2: Convert to fraction form
    12,484.60/18,724.85 = 4,164.68/x
  3. Step 3: Cross multiply
    12,484.60x = 18,724.85 × 4,164.68
  4. Step 4: Simplify right side
    12,484.60x = 77,983,008.30
  5. Step 5: Solve for x
    x = 77,983,008.30/12,484.60
  6. Step 6: Final answer
    x = 6,246.34

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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.