Home / 12,808.59-19,214.10-4,490.70

Finding the Fourth Proportional to 12,808.59, 19,214.10 and 4,490.70

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Solution

The fourth proportional to 12,808.59, 19,214.10 and 4,490.70 is: 6,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.59 : 19,214.10 = 4,490.70 : x
  2. Step 2: Convert to fraction form
    12,808.59/19,214.10 = 4,490.70/x
  3. Step 3: Cross multiply
    12,808.59x = 19,214.10 × 4,490.70
  4. Step 4: Simplify right side
    12,808.59x = 86,284,758.87
  5. Step 5: Solve for x
    x = 86,284,758.87/12,808.59
  6. Step 6: Final answer
    x = 6,736.48

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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.