Home / 12,709.60-19,049.65-4,807.09

Finding the Fourth Proportional to 12,709.60, 19,049.65 and 4,807.09

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Solution

The fourth proportional to 12,709.60, 19,049.65 and 4,807.09 is: 7,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.60 : 19,049.65 = 4,807.09 : x
  2. Step 2: Convert to fraction form
    12,709.60/19,049.65 = 4,807.09/x
  3. Step 3: Cross multiply
    12,709.60x = 19,049.65 × 4,807.09
  4. Step 4: Simplify right side
    12,709.60x = 91,573,340.24
  5. Step 5: Solve for x
    x = 91,573,340.24/12,709.60
  6. Step 6: Final answer
    x = 7,205.05

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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.