Home / 12,698.68-19,045.50-3,931.48

Finding the Fourth Proportional to 12,698.68, 19,045.50 and 3,931.48

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Solution

The fourth proportional to 12,698.68, 19,045.50 and 3,931.48 is: 5,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698.68 : 19,045.50 = 3,931.48 : x
  2. Step 2: Convert to fraction form
    12,698.68/19,045.50 = 3,931.48/x
  3. Step 3: Cross multiply
    12,698.68x = 19,045.50 × 3,931.48
  4. Step 4: Simplify right side
    12,698.68x = 74,877,002.34
  5. Step 5: Solve for x
    x = 74,877,002.34/12,698.68
  6. Step 6: Final answer
    x = 5,896.44

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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.