Home / 12,378.60-18,568.76-4,983.08

Finding the Fourth Proportional to 12,378.60, 18,568.76 and 4,983.08

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Solution

The fourth proportional to 12,378.60, 18,568.76 and 4,983.08 is: 7,474.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.60 : 18,568.76 = 4,983.08 : x
  2. Step 2: Convert to fraction form
    12,378.60/18,568.76 = 4,983.08/x
  3. Step 3: Cross multiply
    12,378.60x = 18,568.76 × 4,983.08
  4. Step 4: Simplify right side
    12,378.60x = 92,529,498.82
  5. Step 5: Solve for x
    x = 92,529,498.82/12,378.60
  6. Step 6: Final answer
    x = 7,474.96

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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.