Home / 12,993.12-19,490.70-4,674.22

Finding the Fourth Proportional to 12,993.12, 19,490.70 and 4,674.22

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Solution

The fourth proportional to 12,993.12, 19,490.70 and 4,674.22 is: 7,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.12 : 19,490.70 = 4,674.22 : x
  2. Step 2: Convert to fraction form
    12,993.12/19,490.70 = 4,674.22/x
  3. Step 3: Cross multiply
    12,993.12x = 19,490.70 × 4,674.22
  4. Step 4: Simplify right side
    12,993.12x = 91,103,819.75
  5. Step 5: Solve for x
    x = 91,103,819.75/12,993.12
  6. Step 6: Final answer
    x = 7,011.70

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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.